@prefix rdf: . @prefix s4syst: . @prefix schema: . @prefix s4city: . @prefix rdfs: . @prefix saref: . @prefix sf: . @prefix dcterms: . @prefix time: . @prefix owl: . @prefix s4watr: . @prefix geosp: . @prefix vann: . @prefix xsd: . dcterms:creator a owl:AnnotationProperty . dcterms:description a owl:AnnotationProperty . dcterms:issued a owl:AnnotationProperty . dcterms:license a owl:AnnotationProperty . dcterms:modified a owl:AnnotationProperty . dcterms:publisher a owl:AnnotationProperty . dcterms:source a owl:AnnotationProperty . dcterms:title a owl:AnnotationProperty . vann:preferredNamespacePrefix a owl:AnnotationProperty . vann:preferredNamespaceUri a owl:AnnotationProperty . schema:Organization a owl:Class . schema:Person a owl:Class . schema:affiliation a owl:ObjectProperty . schema:familyName a owl:DatatypeProperty . schema:givenName a owl:DatatypeProperty . schema:name a owl:DatatypeProperty . schema:affiliation ; schema:familyName "García-Castro" ; schema:givenName "Raúl" ; a schema:Person . geosp:Feature a owl:Class ; rdfs:comment "This class represents the top-level feature type. This class is equivalent to GFI_Feature defined in ISO 19156:2011, and it is superclass of all feature types."@en ; rdfs:isDefinedBy ; rdfs:label "Feature"@en ; rdfs:subClassOf geosp:SpatialObject . geosp:Geometry a owl:Class ; rdfs:comment "The class represents the top-level geometry type. This class is equivalent to the UML class GM_Object defined in ISO 19107, and it is superclass of all geometry types."@en ; rdfs:isDefinedBy ; rdfs:label "Geometry"@en ; rdfs:subClassOf geosp:SpatialObject . geosp:SpatialObject a owl:Class ; rdfs:isDefinedBy ; rdfs:label "Spatial object"@en . geosp:hasGeometry a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "hasGeometry"@en . geosp:sfContains a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "sfContains"@en . geosp:sfWithin a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "sfWithin"@en . sf:Point a owl:Class ; rdfs:isDefinedBy ; rdfs:label "Point"@en ; rdfs:subClassOf geosp:Geometry . sf:Polygon a owl:Class ; rdfs:isDefinedBy ; rdfs:label "Polygon"@en ; rdfs:subClassOf geosp:Geometry . xsd:gDay a rdfs:Datatype . time:DayOfWeek a owl:Class ; rdfs:comment "The day of week."@en ; rdfs:isDefinedBy ; rdfs:label "Day of week"@en . time:Instant a owl:Class ; rdfs:comment "A temporal entity with zero extent or duration"@en ; rdfs:isDefinedBy ; rdfs:label "Instant"@en ; rdfs:subClassOf time:TemporalEntity . time:Interval a owl:Class ; rdfs:comment "A temporal entity with an extent or duration."@en ; rdfs:isDefinedBy ; rdfs:label "Interval"@en ; rdfs:subClassOf time:TemporalEntity . time:TemporalDuration a owl:Class ; rdfs:comment "Time extent; duration of a time interval separate from its particular start position"@en ; rdfs:isDefinedBy ; rdfs:label "Temporal duration"@en . time:TemporalEntity a owl:Class ; rdfs:comment "A temporal interval or instant."@en ; rdfs:isDefinedBy ; rdfs:label "Temporal entity"@en . saref:Actuator a owl:Class ; rdfs:comment "A device responsible for moving or controlling a mechanism or system."@en ; rdfs:isDefinedBy ; rdfs:label "Actuator"@en ; rdfs:subClassOf saref:Device ; owl:disjointWith saref:Sensor . saref:Device a owl:Class ; rdfs:comment "A tangible object designed to accomplish a particular task in households, common public buildings or offices. In order to accomplish this task, the device performs one or more functions. For example, a washing machine is designed to wash (task) and to accomplish this task it performs a start and stop function. Devices can be structured in categories (subclasses) that reflect the different domain in which a device is used, e.g., smart appliances domain (subclass FunctionRelated) vs. building domain (subclass BuildingRelated) vs. smart grid domain (subclass EnergyRelated). New categories can be defined,if needed, to reflect other differences, for example different points of view, such as the point of view of the device's user vs. the point of view of the device's manufacturer. We propose a list of devices that are relevant for the purpose of SAREF, but this list can be extended."@en ; rdfs:isDefinedBy ; rdfs:label "Device"@en ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:Property ; owl:onProperty saref:measuresProperty ], [ a owl:Restriction ; owl:allValuesFrom saref:Measurement ; owl:onProperty saref:makesMeasurement ], [ a owl:Restriction ; owl:allValuesFrom saref:Property ; owl:onProperty saref:controlsProperty ] . saref:FeatureOfInterest a owl:Class ; rdfs:isDefinedBy ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:Measurement ; owl:onProperty saref:hasMeasurement ] . saref:Measurement a owl:Class ; rdfs:comment "Represents the measured value made over a property. It is also linked to the unit of measure in which the value is expressed and the timestamp of the measurement."@en ; rdfs:isDefinedBy ; rdfs:label "Measurement"@en ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:UnitOfMeasure ; owl:onProperty saref:isMeasuredIn ], [ a owl:Restriction ; owl:allValuesFrom saref:Property ; owl:onProperty saref:relatesToProperty ], [ a owl:Restriction ; owl:onDataRange xsd:float ; owl:onProperty saref:hasValue ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger ], [ a owl:Restriction ; owl:onClass saref:Property ; owl:onProperty saref:relatesToProperty ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger ], [ a owl:Restriction ; owl:cardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty saref:hasValue ], [ a owl:Restriction ; owl:onClass saref:UnitOfMeasure ; owl:onProperty saref:isMeasuredIn ; owl:qualifiedCardinality "1"^^xsd:nonNegativeInteger ], [ a owl:Restriction ; owl:allValuesFrom xsd:dateTime ; owl:onProperty saref:hasTimestamp ] . saref:Meter a owl:Class ; rdfs:comment "A device built to accurately detect and display a quantity in a form readable by a human being. Further, a device of category saref:Meter that performs a saref:MeteringFunction."@en ; rdfs:isDefinedBy ; rdfs:label "Meter"@en ; rdfs:subClassOf saref:Sensor . saref:Property a owl:Class ; rdfs:comment "An aspect of an entity that can be observable by a sensor."@en ; rdfs:isDefinedBy ; rdfs:label "Property"@en ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:Measurement ; owl:onProperty saref:relatesToMeasurement ], [ a owl:Restriction ; owl:allValuesFrom saref:Device ; owl:onProperty saref:isMeasuredByDevice ], [ a owl:Restriction ; owl:allValuesFrom saref:Device ; owl:onProperty saref:isControlledByDevice ] . saref:Sensor a owl:Class ; rdfs:comment "A device that detects and responds to events or changes in the physical environment such as light, motion, or temperature changes. A device that has category saref:Sensor and performs a saref:SensingFunction."@en ; rdfs:isDefinedBy ; rdfs:label "Sensor"@en ; rdfs:subClassOf saref:Device . saref:UnitOfMeasure a owl:Class ; rdfs:comment "The unit of measure is a standard for measurement of a quantity, such as a Property. For example, Power is a property and Watt is a unit of power that represents a definite predetermined power: when we say 10 Watt, we actually mean 10 times the definite predetermined power called \"watt\". Our definition is based on the definition of unit of measure in the Ontology of units of Measure (OM). We propose here a list of some units of measure that are relevant for the purpose of the Smart Appliances ontology, but this list can be extended."@en ; rdfs:isDefinedBy ; rdfs:label "Unit of measure"@en . saref:controlsProperty a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "controls property"@en . saref:hasManufacturer a owl:DatatypeProperty ; rdfs:comment "A relationship identifying the manufacturer of an entity (e.g., device)"@en ; rdfs:isDefinedBy ; rdfs:label "has manufacturer"@en . saref:hasMeasurement a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "has measurement"@en . saref:hasModel a owl:DatatypeProperty ; rdfs:comment "A relationship identifying the model of an entity (e.g., device)"@en ; rdfs:isDefinedBy ; rdfs:label "has model"@en . saref:hasProperty a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "has property"@en . saref:hasTimestamp a owl:DatatypeProperty ; rdfs:isDefinedBy ; rdfs:label "has timestamp"@en . saref:hasValue a owl:DatatypeProperty ; rdfs:isDefinedBy ; rdfs:label "has value"@en . saref:isControlledByDevice a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is controlled by device"@en . saref:isMeasuredByDevice a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is measured by device"@en . saref:isMeasuredIn a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is measured in"@en . saref:isMeasurementOf a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is measurement of"@en ; owl:inverseOf saref:hasMeasurement . saref:isPropertyOf a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is property of"@en . saref:makesMeasurement a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "makes measurement"@en ; owl:inverseOf saref:measurementMadeBy . saref:measurementMadeBy a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "measurement made by"@en . saref:measuresProperty a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "measures property"@en . saref:relatesToMeasurement a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "relates to measurement"@en . saref:relatesToProperty a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "relates to property"@en . s4city:Agent a owl:Class ; rdfs:comment "An agent making an action in the context of a city. An agent could be a person, software, etc."@en ; rdfs:isDefinedBy ; rdfs:label "Agent"@en . s4city:KeyPerformanceIndicator a owl:Class ; rdfs:comment "A Key Performance Indicator (KPI) is a type of performance measurement. KPIs evaluate the success of an organization or of a particular activity in which it engages. (Definition taken from FIWARE)"@en ; rdfs:isDefinedBy ; rdfs:label "Key Performance Indicator"@en ; rdfs:seeAlso ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:FeatureOfInterest ; owl:onProperty s4city:isKPIOf ], [ a owl:Restriction ; owl:allValuesFrom time:TemporalDuration ; owl:onProperty s4city:hasCalculationPeriod ] . s4city:KeyPerformanceIndicatorAssessment a owl:Class ; rdfs:comment "A Key Performance Indicator assessment represents the assessment of a KPI calculated by a given agent in a given time."@en ; rdfs:isDefinedBy ; rdfs:label "Key performance indicator assessment"@en ; rdfs:subClassOf [ a owl:Restriction ; owl:allValuesFrom saref:UnitOfMeasure ; owl:onProperty saref:isMeasuredIn ], [ a owl:Restriction ; owl:allValuesFrom s4city:KeyPerformanceIndicator ; owl:onProperty s4city:quantifiesKPI ], [ a owl:Restriction ; owl:allValuesFrom xsd:dateTime ; owl:onProperty s4city:hasLastUpdateDate ], [ a owl:Restriction ; owl:allValuesFrom xsd:dateTime ; owl:onProperty s4city:hasCreationDate ], [ a owl:Restriction ; owl:allValuesFrom time:TemporalEntity ; owl:onProperty s4city:refersToTime ], [ a owl:Restriction ; owl:allValuesFrom xsd:dateTime ; owl:onProperty s4city:hasExpirationDate ], [ a owl:Restriction ; owl:allValuesFrom saref:FeatureOfInterest ; owl:onProperty s4city:assesses ], [ a owl:Restriction ; owl:allValuesFrom s4city:Agent ; owl:onProperty s4city:isAssessedBy ], [ a owl:Restriction ; owl:allValuesFrom saref:Measurement ; owl:onProperty s4city:isDerivedFrom ], [ a owl:Restriction ; owl:cardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty saref:hasValue ] . s4city:assesses a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "assesses"@en . s4city:hasCalculationPeriod a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "has calculation period"@en . s4city:hasCreationDate a owl:DatatypeProperty ; rdfs:isDefinedBy ; rdfs:label "has creation date"@en ; rdfs:range xsd:dateTime . s4city:hasExpirationDate a owl:DatatypeProperty ; rdfs:isDefinedBy ; rdfs:label "has expiration date"@en ; rdfs:range xsd:dateTime . s4city:hasKPI a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "has key performance indicator"@en ; owl:inverseOf s4city:isKPIOf . s4city:hasLastUpdateDate a owl:DatatypeProperty ; rdfs:isDefinedBy ; rdfs:label "has last update date"@en ; rdfs:range xsd:dateTime . s4city:isAssessedBy a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is assessed by"@en . s4city:isDerivedFrom a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is derived from"@en . s4city:isKPIOf a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "is key performance indicator of"@en . s4city:quantifiesKPI a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "quantifies KPI"@en . s4city:refersToFeature a owl:ObjectProperty ; rdfs:comment "Relation between a KPI assessment and the geographical feature it refers to"@en ; rdfs:isDefinedBy ; rdfs:label "refers to feature"@en . s4city:refersToTime a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "refers to time"@en . s4syst:System a owl:Class ; rdfs:isDefinedBy ; rdfs:label "System"@en . s4syst:hasSubSystem a owl:ObjectProperty ; rdfs:isDefinedBy ; rdfs:label "has sub-system"@en . dcterms:creator ; dcterms:description "This ontology extends the SAREF ontology for the water domain. This work has been developed in the context of the STF 566, which was established with the goal to create three SAREF extensions, one of them for the water domain."@en ; dcterms:issued "2020-04-01"^^xsd:date ; dcterms:license ; dcterms:modified "2020-06-03"^^xsd:date ; dcterms:publisher ; dcterms:source ; dcterms:title "SAREF extension for water"@en ; vann:preferredNamespacePrefix "s4watr" ; vann:preferredNamespaceUri "https://saref.etsi.org/saref4watr/" ; a owl:Ontology ; rdfs:seeAlso ; owl:versionIRI ; owl:versionInfo "v1.1.1" . a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of 1,2-dichloroethane."@en ; rdfs:label "1,2-dichloroethane"@en . s4watr:AcceptabilityProperty a owl:Class ; rdfs:comment "An acceptability property is a property of water that is related to its acceptability."@en ; rdfs:label "Acceptability property"@en ; rdfs:subClassOf s4watr:WaterProperty . s4watr:Acrylamide a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of acrylamide."@en ; rdfs:label "Acrylamide"@en . s4watr:Agriculture a owl:NamedIndividual, s4watr:WaterUse ; rdfs:comment "Use of water for the farming of plants and livestock."@en ; rdfs:label "Agriculture"@en . s4watr:Aluminium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of aluminium."@en ; rdfs:label "Aluminium"@en . s4watr:Ammonium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of ammonium."@en ; rdfs:label "Ammonium"@en . s4watr:Antimony a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of antimony."@en ; rdfs:label "Antimony"@en . s4watr:Aquaculture a owl:NamedIndividual, s4watr:WaterUse ; rdfs:comment "Use of water for the farming of fish, crustaceans, molluscs, aquatic plants, algae, and other organisms."@en ; rdfs:label "Aquaculture"@en . s4watr:Aquifer a owl:Class ; rdfs:comment "An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials."@en ; rdfs:label "Aquifer"@en ; rdfs:subClassOf s4watr:StorageAsset . s4watr:Arsenic a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of arsenic."@en ; rdfs:label "Arsenic"@en . s4watr:AtmosphericPressure a owl:NamedIndividual, s4watr:EnvironmentalProperty ; rdfs:comment "Property of the environment indicating the atmospheric pressure."@en ; rdfs:label "Atmospheric pressure"@en . s4watr:BacterialProperty a owl:Class ; rdfs:comment "A bacterial property is a property of water that is related to bacteria."@en ; rdfs:label "Bacterial property"@en ; rdfs:subClassOf s4watr:MicrobialProperty . s4watr:BatteryLastChange a owl:NamedIndividual, s4watr:WaterMeterProperty ; rdfs:comment "The time in which the battery was last changed."@en ; rdfs:label "Battery last change"@en . s4watr:BatteryOperatingTime a owl:NamedIndividual, s4watr:WaterMeterProperty ; rdfs:comment "The time for which the battery has been operating since the last charge."@en ; rdfs:label "Battery operating time"@en . s4watr:BatteryRemainingTime a owl:NamedIndividual, s4watr:WaterMeterProperty ; rdfs:comment "The time until the battery is discharged."@en ; rdfs:label "Battery remaining time"@en . s4watr:Benzene a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of benzene."@en ; rdfs:label "Benzene"@en . s4watr:Benzoapyrene a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of benzo(a)pyrene."@en ; rdfs:label "Benzo(a)pyrene"@en . s4watr:Boron a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of boron."@en ; rdfs:label "Boron"@en . s4watr:Bromate a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of bromate."@en ; rdfs:label "Bromate"@en . s4watr:Cadmium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of cadmium."@en ; rdfs:label "Cadmium"@en . s4watr:Channel a owl:Class ; rdfs:comment "A channel is a passage of water flowing in an open conduit (i.e., subject to atmospheric pressure)."@en ; rdfs:label "Channel"@en ; rdfs:subClassOf s4watr:Main . s4watr:ChemicalProperty a owl:Class ; rdfs:comment "A chemical property is a property of water that is related to chemical components."@en ; rdfs:label "ChemicalProperty"@en ; rdfs:subClassOf s4watr:WaterProperty . s4watr:Chloride a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of chloride."@en ; rdfs:label "Chloride"@en . s4watr:Chromium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of chromium."@en ; rdfs:label "Chromium"@en . s4watr:ClostridiumPerfringens a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its concentration of clostridium perfringens."@en ; rdfs:label "Clostridium perfringens"@en . s4watr:ColiformBacteria a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its concentration of coliform bacteria."@en ; rdfs:label "Coliform bacteria"@en . s4watr:ColonyCount22C a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its colony count at 22 ºC."@en ; rdfs:label "Colony count at 22 °C"@en . s4watr:ColonyCount37C a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its colony count at 37 ºC."@en ; rdfs:label "Colony count at 37 °C"@en . s4watr:Colour a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its colour."@en ; rdfs:label "Colour"@en . s4watr:Conductivity a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its conductivity."@en ; rdfs:label "Conductivity"@en . s4watr:ConsumptionBasedTariff a owl:Class ; rdfs:comment "A consumption-based tariff is a tariff that is based on consumption."@en ; rdfs:label "Consumption-based tariff"@en ; rdfs:subClassOf s4watr:Tariff . s4watr:Copper a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of copper."@en ; rdfs:label "Copper"@en . s4watr:Cyanide a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of cyanide."@en ; rdfs:label "Cyanide"@en . s4watr:DistributionSystem a owl:Class ; rdfs:comment "A water distribution system is an infrastructure to carry potable water from a centralized treatment plant or wells to water consumers in order to adequately deliver water to satisfy residential, commercial, industrial and fire fighting requirements."@en ; rdfs:label "Distribution system"@en ; rdfs:subClassOf s4watr:WaterInfrastructure . s4watr:Domestic a owl:NamedIndividual, s4watr:WaterUse ; rdfs:comment "Use of water for domestic purposes."@en ; rdfs:label "Domestic"@en . s4watr:DrinkingWater a owl:NamedIndividual, s4watr:Water ; rdfs:comment "Drinking water is water that is treated to comply with drinking water standards."@en ; rdfs:label "Drinking water"@en, "Potable water"@en . s4watr:Enterococci a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its concentration of enterococci."@en ; rdfs:label "Enterococci"@en . s4watr:EnvironmentalProperty a owl:Class ; rdfs:comment "Class to group those properties related to the environment."@en ; rdfs:label "Environmental property"@en ; rdfs:subClassOf saref:Property . s4watr:Epichlorohydrin a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of epichlorohydrin."@en ; rdfs:label "Epichlorohydrin"@en . s4watr:EscherichiaColi a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its concentration of escherichia coli."@en ; rdfs:label "E. coli"@en, "Escherichia coli"@en . s4watr:Estuary a owl:Class ; rdfs:comment "An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea."@en ; rdfs:label "Estuary"@en ; rdfs:subClassOf s4watr:SinkAsset . s4watr:ExternalTemperature a owl:NamedIndividual, s4watr:EnvironmentalProperty ; rdfs:comment "Property of the environment indicating the temperature."@en ; rdfs:label "External temperature"@en . s4watr:FireHydrant a owl:Class ; rdfs:comment "A fire hydrant is a fitting in a street or other public place with a nozzle by which a fire hose may be attached to a water main."@en ; rdfs:label "Fire hydrant"@en ; rdfs:subClassOf s4watr:WaterDevice . s4watr:FlowPressure a owl:NamedIndividual, s4watr:WaterFlowProperty ; rdfs:comment "Property indicating the pressure of a water flow."@en ; rdfs:label "Flow pressure"@en . s4watr:FlowRate a owl:NamedIndividual, s4watr:WaterFlowProperty ; rdfs:comment "Property indicating the rate of a water flow."@en ; rdfs:label "Flow rate"@en . s4watr:FlowTemperature a owl:NamedIndividual, s4watr:WaterFlowProperty ; rdfs:comment "Property indicating the temperature of a water flow."@en ; rdfs:label "Flow temperature"@en . s4watr:FlowVolume a owl:NamedIndividual, s4watr:WaterFlowProperty ; rdfs:comment "Property indicating the volume of a water flow."@en ; rdfs:label "Flow volume"@en . s4watr:Fluoride a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of fluoride."@en ; rdfs:label "Fluoride"@en . s4watr:GaugingStation a owl:Class ; rdfs:comment "A gauging station is an infrastructure to monitor and test terrestrial bodies of water."@en ; rdfs:label "Gauging station"@en ; rdfs:subClassOf s4watr:MonitoringInfrastructure . s4watr:Glacier a owl:Class ; rdfs:comment "A glacier is a persistent body of dense ice that is constantly moving under its own weight."@en ; rdfs:label "Glacier"@en ; rdfs:subClassOf s4watr:SourceAsset . s4watr:Hardness a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its hardness."@en ; rdfs:label "Hardness"@en . s4watr:Humidity a owl:NamedIndividual, s4watr:EnvironmentalProperty ; rdfs:comment "Property of the environment indicating the humidity."@en ; rdfs:label "Humidity"@en . s4watr:HydroelectricPowerPlant a owl:Class ; rdfs:comment "A hydroelectric power plant is an infrastructure to generate electricity by conversion of the energy of running water."@en ; rdfs:label "Hydroelectric power plant"@en ; rdfs:subClassOf s4watr:WaterInfrastructure . s4watr:HydrogenIonConcentration a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its hydrogen ion concentration."@en ; rdfs:label "Hydrogen ion concentration"@en, "pH"@en . s4watr:Industry a owl:NamedIndividual, s4watr:WaterUse ; rdfs:comment "Use of water for industrial purposes."@en ; rdfs:label "Industry"@en . s4watr:Intake a owl:Class ; rdfs:comment "An intake is an installation for obtaining water from a source of supply (river, lake, reservoir, and so on)."@en ; rdfs:label "Intake"@en ; rdfs:subClassOf s4watr:TransportAsset . s4watr:Iron a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of iron."@en ; rdfs:label "Iron"@en . s4watr:Lagoon a owl:Class ; rdfs:comment "A lagoon is a shallow body of water separated from a larger body of water by barrier islands or reefs."@en ; rdfs:label "Lagoon"@en ; rdfs:subClassOf s4watr:SourceAsset . s4watr:Lake a owl:Class ; rdfs:comment "A lake is an area filled with water, localized in a basin, surrounded by land, apart from any river or other outlet that serves to feed or drain the lake."@en ; rdfs:label "Lake"@en ; rdfs:subClassOf s4watr:SourceAsset . s4watr:Lead a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of lead."@en ; rdfs:label "Lead"@en . s4watr:Main a owl:Class ; rdfs:comment "A main is a passage of water to flow through."@en ; rdfs:label "Main"@en ; rdfs:subClassOf s4watr:TransportAsset . s4watr:Manganese a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of manganese."@en ; rdfs:label "Manganese"@en . s4watr:Manhole a owl:Class ; rdfs:comment "A maintenance hole is an enclosure that facilitates human access to and working space for equipment."@en ; rdfs:label "Maintenance hole"@en, "Manhole"@en ; rdfs:subClassOf s4watr:TransportAsset . s4watr:Mercury a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of mercury."@en ; rdfs:label "Mercury"@en . s4watr:MeterOnTime a owl:NamedIndividual, s4watr:WaterMeterProperty ; rdfs:comment "The duration of the meter power up."@en ; rdfs:label "Meter on time"@en . s4watr:MeterOperatingTime a owl:NamedIndividual, s4watr:WaterMeterProperty ; rdfs:comment "The time for which the meter has been operating."@en ; rdfs:label "Meter operating time"@en . s4watr:MicrobialProperty a owl:Class ; rdfs:comment "A microbial property is a property of water that is related to microbes."@en ; rdfs:label "Microbial property"@en ; rdfs:subClassOf s4watr:WaterProperty . s4watr:MonitoringInfrastructure a owl:Class ; rdfs:comment "A monitoring infrastructure is an infrastructure to monitor water."@en ; rdfs:label "Monitoring infrastructure"@en ; rdfs:subClassOf s4watr:WaterInfrastructure . s4watr:Nickel a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of nickel."@en ; rdfs:label "Nickel"@en . s4watr:Nitrate a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of nitrate."@en ; rdfs:label "Nitrate"@en . s4watr:Nitrite a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of nitrite."@en ; rdfs:label "Nitrite"@en . s4watr:Ocean a owl:Class ; rdfs:comment "An ocean is a large body of salt water."@en ; rdfs:label "Ocean"@en ; rdfs:subClassOf s4watr:SinkAsset . s4watr:Odour a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its odour."@en ; rdfs:label "Odour"@en . s4watr:Oxidisability a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its oxidisability."@en ; rdfs:label "Oxidisability"@en . s4watr:Oxygen a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its oxygen saturation."@en ; rdfs:label "Dissolved oxygen"@en, "Oxygen"@en, "Oxygen saturation"@en . s4watr:Pipe a owl:Class ; rdfs:comment "A pipe is a passage of water flowing in a closed conduit (i.e., not subject to atmospheric pressure)."@en ; rdfs:label "Pipe"@en ; rdfs:subClassOf s4watr:Main . s4watr:Pit a owl:Class ; rdfs:comment "A pit is a well or hole sunk in the ground to procure, store or drain water."@en ; rdfs:label "Pit"@en ; rdfs:subClassOf s4watr:TransportAsset . s4watr:PolycyclicAromaticHydrocarbons a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of polycyclic aromatic hydrocarbons."@en ; rdfs:label "Polycyclic aromatic hydrocarbons"@en . s4watr:Precipitation a owl:NamedIndividual, s4watr:EnvironmentalProperty ; rdfs:comment "Property of the environment indicating the precipitation."@en ; rdfs:label "Precipitation"@en . s4watr:PseudomonasAeruginosa a owl:NamedIndividual, s4watr:BacterialProperty ; rdfs:comment "Property of the water indicating its concentration of pseudomonas aeruginosa."@en ; rdfs:label "Pseudomonas aeruginosa"@en . s4watr:Pump a owl:Class ; rdfs:comment "A pump is a device for moving water by mechanical action."@en ; rdfs:label "Pump"@en ; rdfs:subClassOf saref:Actuator, s4watr:WaterDevice . s4watr:RawWater a owl:NamedIndividual, s4watr:Water ; rdfs:comment "Raw water is water found in the environment that has not been treated and does not have any of its minerals, ions, particles, bacteria, or parasites removed."@en ; rdfs:label "Raw water"@en . s4watr:Recreation a owl:NamedIndividual, s4watr:WaterUse ; rdfs:comment "Use of water for recreational purposes."@en ; rdfs:label "Recreation"@en . s4watr:Reservoir a owl:Class ; rdfs:comment "A reservoir is an enlarged natural or artificial lake, pond or impoundment created using a dam or lock to store water."@en ; rdfs:label "Reservoir"@en ; rdfs:subClassOf s4watr:StorageAsset . s4watr:River a owl:Class ; rdfs:comment "A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river."@en ; rdfs:label "River"@en ; rdfs:subClassOf s4watr:SinkAsset . s4watr:Sea a owl:Class ; rdfs:comment "A sea is a body of salt water partly or fully enclosed by land."@en ; rdfs:label "Sea"@en ; rdfs:subClassOf s4watr:SinkAsset . s4watr:Selenium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of selenium."@en ; rdfs:label "Selenium"@en . s4watr:SinkAsset a owl:Class ; rdfs:comment "A sink asset is a water asset where water sinks."@en ; rdfs:label "Sink asset"@en ; rdfs:subClassOf s4watr:WaterAsset . s4watr:Sodium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of sodium."@en ; rdfs:label "Sodium"@en . s4watr:SourceAsset a owl:Class ; rdfs:comment "A source asset is a water asset that is a natural source of water."@en ; rdfs:label "Source asset"@en ; rdfs:subClassOf s4watr:WaterAsset . s4watr:StorageAsset a owl:Class ; rdfs:comment "A storage asset is a water asset used to store water."@en ; rdfs:label "Storage asset"@en ; rdfs:subClassOf s4watr:WaterAsset . s4watr:StorageInfrastructure a owl:Class ; rdfs:comment "An storage infrastructure is an infrastructure to storage both potable water for consumption, and non potable water for use in agriculture."@en ; rdfs:label "Storage infrastructure"@en ; rdfs:subClassOf s4watr:WaterInfrastructure . s4watr:Stormwater a owl:NamedIndividual, s4watr:Water ; rdfs:comment "Stormwater is water that originates during precipitation events and snow/ice melt."@en ; rdfs:label "Storm water"@en . s4watr:Sulphate a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of sulphate."@en ; rdfs:label "Sulphate"@en . s4watr:Tank a owl:Class ; rdfs:comment "A tank is a container for storing water."@en ; rdfs:label "Tank"@en ; rdfs:subClassOf s4watr:StorageAsset . s4watr:Tariff a owl:Class ; rdfs:comment "A tariff is a schedule of rates or charges of a business or a public utility. Tariffs can be based on time, thresholds or consumption; however, combined tariffs may also exist that mix more than one of these types."@en ; rdfs:label "Tariff"@en . s4watr:Taste a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its taste."@en ; rdfs:label "Taste"@en . s4watr:Temperature a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its temperature."@en ; rdfs:label "Temperature"@en . s4watr:Tetrachloroethene a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of tetrachloroethene."@en ; rdfs:label "Tetrachloroethene"@en . s4watr:ThresholdBasedTariff a owl:Class ; rdfs:comment "A threshold-based tariff is a tariff that is based on a threshold."@en ; rdfs:label "Threshold-based tariff"@en ; rdfs:subClassOf s4watr:Tariff . s4watr:TimeBasedTariff a owl:Class ; rdfs:comment "A time-based tariff is a tariff that is based on time."@en ; rdfs:label "Time-based tariff"@en ; rdfs:subClassOf s4watr:Tariff . s4watr:TotalDissolvedSolids a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating the dissolved combined content of all inorganic and organic substances present in a sample of water."@en ; rdfs:label "Total dissolved solids"@en . s4watr:TotalIndicativeDose a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its total indicative dose."@en ; rdfs:label "Total indicative dose"@en . s4watr:TotalOrganicCarbon a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of total organic carbon."@en ; rdfs:label "TOC"@en, "Total organic carbon"@en . s4watr:TotalSuspendedSolids a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating the dry-weight of suspended particles, that are not dissolved, in a sample of water."@en ; rdfs:label "Total suspended solids"@en . s4watr:TransportAsset a owl:Class ; rdfs:comment "A transport asset is a water asset used to enable and support the transport and distribution of water."@en ; rdfs:label "Transport asset"@en ; rdfs:subClassOf s4watr:WaterAsset . s4watr:TreatmentPlant a owl:Class ; rdfs:comment "A treatment plant is an infrastructure to improve the quality of water to make it more acceptable for a specific end-use."@en ; rdfs:label "Treatment plant"@en ; rdfs:subClassOf s4watr:WaterInfrastructure . s4watr:Trichloroethene a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of trichloroethene."@en ; rdfs:label "Trichloroethene"@en . s4watr:Trihalomethanes a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of trihalomethanes."@en ; rdfs:label "Trihalomethanes"@en . s4watr:Tritium a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of tritium."@en ; rdfs:label "Tritium"@en . s4watr:Turbidity a owl:NamedIndividual, s4watr:AcceptabilityProperty ; rdfs:comment "Property of the water indicating its turbidity."@en ; rdfs:label "Turbidity"@en . s4watr:Valve a owl:Class ; rdfs:comment "A valve is a device designed to control water flow, pressure or volume."@en ; rdfs:label "Valve"@en ; rdfs:subClassOf saref:Actuator, s4watr:WaterDevice . s4watr:Vent a owl:Class ; rdfs:comment "A vent is the part of a system that allows air to enter a plumbing system to maintain proper air pressure and sewer gases to escape to the outside."@en ; rdfs:label "Vent"@en ; rdfs:subClassOf s4watr:TransportAsset . s4watr:VinylChloride a owl:NamedIndividual, s4watr:ChemicalProperty ; rdfs:comment "Property of the water indicating its concentration of vinyl chloride."@en ; rdfs:label "Vinyl chloride"@en . s4watr:Wastewater a owl:NamedIndividual, s4watr:Water ; rdfs:comment "Wastewater is water that has been used in the home, in a business, or as part of an industrial process."@en ; rdfs:label "Waste water"@en . s4watr:Water a owl:Class ; rdfs:comment "This class is used to define a particular quantity or body of water."@en ; rdfs:label "Water"@en ; rdfs:subClassOf saref:FeatureOfInterest, [ a owl:Restriction ; owl:allValuesFrom s4watr:WaterProperty ; owl:onProperty saref:hasProperty ] . s4watr:WaterAsset a owl:Class ; rdfs:comment "A water asset is a physical entity used in the process of transporting, treating, storing and distributing water."@en ; rdfs:label "Water asset"@en ; rdfs:subClassOf geosp:Feature, saref:FeatureOfInterest, s4syst:System . s4watr:WaterDevice a owl:Class ; rdfs:comment "A water device is a device that is also a water asset."@en ; rdfs:label "Water device"@en ; rdfs:subClassOf saref:Device, s4watr:WaterAsset . s4watr:WaterFlowProperty a owl:Class ; rdfs:comment "Class to group those properties related to water flow."@en ; rdfs:label "Water flow property"@en ; rdfs:subClassOf saref:Property . s4watr:WaterInfrastructure a owl:Class ; rdfs:comment "A water infrastructure is the set of facilities, services, and installations needed for water management."@en ; rdfs:label "Water infrastructure"@en ; rdfs:subClassOf geosp:Feature, saref:FeatureOfInterest, s4syst:System, [ a owl:Restriction ; owl:onProperty s4watr:isIntendedFor ; owl:someValuesFrom s4watr:WaterUse ], [ a owl:Restriction ; owl:onProperty s4watr:isDesignedFor ; owl:someValuesFrom s4watr:Water ] . s4watr:WaterMeter a owl:Class ; rdfs:comment "A water meter is an instrument intended to measure continuously, memorize, and display the volume of water passing through the meter."@en ; rdfs:label "Water meter"@en ; rdfs:subClassOf saref:Meter, s4watr:WaterDevice, [ a owl:Restriction ; owl:allValuesFrom s4watr:WaterMeterProperty ; owl:onProperty saref:hasProperty ], [ a owl:Restriction ; owl:maxCardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty s4watr:hasHardwareVersion ], [ a owl:Restriction ; owl:maxCardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty s4watr:hasVersion ], [ a owl:Restriction ; owl:maxCardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty s4watr:hasFabricationNumber ], [ a owl:Restriction ; owl:onProperty saref:measuresProperty ; owl:someValuesFrom s4watr:WaterFlowProperty ], [ a owl:Restriction ; owl:maxCardinality "1"^^xsd:nonNegativeInteger ; owl:onProperty s4watr:hasFirmwareVersion ] . s4watr:WaterMeterProperty a owl:Class ; rdfs:comment "Class to group those properties related to water meters."@en ; rdfs:label "Water meter property"@en ; rdfs:subClassOf saref:Property . s4watr:WaterProperty a owl:Class ; rdfs:comment "Class to group those properties related to the water."@en ; rdfs:label "Water property"@en ; rdfs:subClassOf saref:Property . s4watr:WaterUse a owl:Class ; rdfs:comment "This class is used to define the different uses of water."@en ; rdfs:label "Water use"@en . s4watr:appliesTo a owl:ObjectProperty ; rdfs:comment "The water meter to which a tariff applies to."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "applies to"@en ; rdfs:range s4watr:WaterMeter . s4watr:controlsFeature a owl:ObjectProperty ; rdfs:comment "A relationship specifying the features of interest that are controlled by a device."@en ; rdfs:domain saref:Device ; rdfs:label "controls feature"@en ; rdfs:range saref:FeatureOfInterest . s4watr:featureIsControlledByDevice a owl:ObjectProperty ; rdfs:comment "A relationship specifying the devices that control a feature of interest."@en ; rdfs:domain saref:FeatureOfInterest ; rdfs:label "feature is controlled by device"@en ; rdfs:range saref:Device . s4watr:featureIsMeasuredByDevice a owl:ObjectProperty ; rdfs:comment "A relationship specifying the devices that measure a feature of interest."@en ; rdfs:domain saref:FeatureOfInterest ; rdfs:label "feature is measured by device"@en ; rdfs:range saref:Device . s4watr:forAbsoluteTimeAtDay a owl:ObjectProperty ; rdfs:comment "The time interval in each day for which a tariff is applied (e.g., 8:00 to 10:00)."@en ; rdfs:domain s4watr:TimeBasedTariff ; rdfs:label "for absolute time at day"@en ; rdfs:range time:Interval . s4watr:forDayInMonth a owl:DatatypeProperty ; rdfs:comment "The day of the month for which a tariff is applied (e.g., each 15)."@en ; rdfs:domain s4watr:TimeBasedTariff ; rdfs:label "for day in month"@en ; rdfs:range xsd:gDay . s4watr:forFinancialConsumption a owl:DatatypeProperty ; rdfs:comment "The financial consumption related to a tariff (e.g., prepaid tariffs)."@en ; rdfs:domain s4watr:ConsumptionBasedTariff ; rdfs:label "for financial consumption"@en . s4watr:forVolumeConsumption a owl:DatatypeProperty ; rdfs:comment "The volume consumption related to a tariff (e.g., after consumption of 900 litres)."@en ; rdfs:domain s4watr:ConsumptionBasedTariff ; rdfs:label "for volume consumption"@en . s4watr:forVolumeFlow a owl:DatatypeProperty ; rdfs:comment "The volume flow related to a tariff."@en ; rdfs:domain s4watr:ThresholdBasedTariff ; rdfs:label "for volume flow"@en . s4watr:forWeekDay a owl:ObjectProperty ; rdfs:comment "The day of the week for which a tariff is applied (e.g., each Saturday and Sunday)."@en ; rdfs:domain s4watr:TimeBasedTariff ; rdfs:label "for week day"@en ; rdfs:range time:DayOfWeek . s4watr:hasBillingDate a owl:DatatypeProperty ; rdfs:comment "The billing date of a tariff."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "has billing date"@en ; rdfs:range xsd:dateTime . s4watr:hasBillingPeriod a owl:ObjectProperty ; rdfs:comment "The billing period of a tariff."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "has billing period"@en ; rdfs:range time:TemporalDuration . s4watr:hasDuration a owl:ObjectProperty ; rdfs:comment "The duration of a tariff."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "has duration"@en ; rdfs:range time:TemporalDuration . s4watr:hasFabricationNumber a owl:DatatypeProperty ; rdfs:comment "The fabrication number of a device."@en ; rdfs:label "has fabrication number"@en ; rdfs:range rdfs:Literal . s4watr:hasFirmwareVersion a owl:DatatypeProperty ; rdfs:comment "The firmware version of a device."@en ; rdfs:label "has firmware version"@en ; rdfs:range rdfs:Literal . s4watr:hasHardwareVersion a owl:DatatypeProperty ; rdfs:comment "The hardware version of a device."@en ; rdfs:label "has hardware version"@en ; rdfs:range rdfs:Literal . s4watr:hasPeriod a owl:ObjectProperty ; rdfs:comment "The period of a tariff."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "has period"@en ; rdfs:range time:TemporalDuration . s4watr:hasPhenomenonTime a owl:ObjectProperty ; rdfs:comment "The time for which the value of a measurement applies to the feature of interest."@en ; rdfs:domain saref:Measurement ; rdfs:label "has phenomenon time"@en ; rdfs:range time:TemporalEntity . s4watr:hasStartTimestamp a owl:DatatypeProperty ; rdfs:comment "The start date and time of a tariff."@en ; rdfs:domain s4watr:Tariff ; rdfs:label "has start timestamp"@en ; rdfs:range xsd:dateTime . s4watr:hasVersion a owl:DatatypeProperty ; rdfs:comment "The version of a device."@en ; rdfs:label "has version"@en ; rdfs:range rdfs:Literal . s4watr:isDesignedFor a owl:ObjectProperty ; rdfs:comment "The type of water for which an infrastructure is designed for."@en ; rdfs:label "is designed for"@en . s4watr:isIntendedFor a owl:ObjectProperty ; rdfs:comment "The intended use of the infrastructure."@en ; rdfs:label "is intended for"@en . s4watr:measuresFeature a owl:ObjectProperty ; rdfs:comment "A relationship specifying the features of interest that are measured by a device."@en ; rdfs:domain saref:Device ; rdfs:label "measures feature"@en ; rdfs:range saref:FeatureOfInterest . s4watr:operatesAtRadioFrequency a owl:DatatypeProperty ; rdfs:comment "The radio frequency at which a device operates."@en ; rdfs:label "operates at radio frequency"@en . s4watr:requiresPower a owl:DatatypeProperty ; rdfs:comment "The power required by a device."@en ; rdfs:label "requires power"@en . schema:name "Universidad Politécnica de Madrid" ; a schema:Organization .