Table 5.

The object properties, domain, range, and the description of main object properties in combined information space.

Object Property	Domain	Range	Description
sosa: madeObservation	sosa: Sensor	sosa: Observation	Relation between a IoTSensor and an Observation made by the Sensor which is either an IoT sensor or social sensor.
sosa:resultTime	sosa:Observation	xsd:dateTime	The result time is the instant of time when the Observation activity was completed by either an IoT sensor or social sensor.
sosa:observes	sosa:Sensor	sosa:ObservableProperty	Relation between a Sensor (either IoT or social media) and an ObservableProperty that it is capable of sensing.
sosa:observedProperty	sosa:Observation	sosa:ObservableProperty	Relation linking an Observation to the ObservableProperty that was observed.
sosa:hasSimpleResult	sosa:Observation	value	The simple value of an Observation.
senso:hasmentionedLocation	sosa: Sensor	senso:LocationNames	relation between a social media sensor and the location names mentioned in the posting.
senso:similarityStrength	sosa: Sensor	value	Relation between a social media sensor’s posting and the observable property which contains a value identifying the similarity of the observable property that is being discussed in the social media posting.
senso:hasCity	sosa: Sensor	value	Relation between social sensor and the name of the place the social sensor or IoT sensor is reporting from.
senso: isReportingOn	sosa: Sensor	sosa:ObservableProperty	Relation between social media sensor and the sosa observable property that is being reported by social sensor.
senso: hasPersonCount	sosa: Sensor	value	Relation between a social media sensor and number of persons mentioned in the social media posting.