Added an example of a temperature sensor making a measurement.

@prefix : <http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example/> .

@prefix owl: <http://www.w3.org/2002/07/owl#> .

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .

@prefix xml: <http://www.w3.org/XML/1998/namespace> .

@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

@base <http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example/> .

<http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example> rdf:type owl:Ontology ;

                                                                            owl:versionIRI <http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example/1.0.0> ;

                                                                            owl:imports <https://saref.etsi.org/saref4mari/v1.1.1/> .

# Represents a sensor on a mooring rig off-shore from Austevoll, Norway.

###  http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example#Austevoll_Temperature_Sensor_1063

:Austevoll_Temperature_Sensor_1063 rdf:type owl:NamedIndividual ,

                                            <https://saref.etsi.org/core/Sensor> ,

                                            [ rdf:type owl:Restriction ;

                                              owl:onProperty <https://saref.etsi.org/core/madeExecution> ;

                                              owl:hasValue :Temperature_Measurement_20241128

                                            ] .

# Represents an observation made by the Austevoll sensor at a specific time.

###  http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example#Temperature_Measurement_20241128

:Temperature_Measurement_20241128 rdf:type owl:NamedIndividual ,

                                           <https://saref.etsi.org/core/Observation> ,

                                           [ rdf:type owl:Restriction ;

                                             owl:onProperty <https://saref.etsi.org/core/hasResult> ;

                                             owl:hasValue :Water_Temperature_20241128

                                           ] ,

                                           [ rdf:type owl:Restriction ;

                                             owl:onProperty <https://saref.etsi.org/core/hasResultTime> ;

                                             owl:hasValue "2024-11-28T12:00:00Z"^^xsd:dateTime

                                           ] .

# Represents a specific observation result as part of the observation made by the Austevoll sensor.

# This result indicates a specific value and a specific unit it is measured in.

###  http://www.semanticweb.org/ispa/ontologies/2024/10/s4mari-sensor-example#Water_Temperature_20241128

:Water_Temperature_20241128 rdf:type owl:NamedIndividual ,

                                     [ rdf:type owl:Class ;

                                       owl:oneOf ( <https://saref.etsi.org/saref4mari/WaterTemperature>

                                                 )

                                     ] ,

                                     [ rdf:type owl:Restriction ;

                                       owl:onProperty <https://saref.etsi.org/core/isMeasuredIn> ;

                                       owl:hasValue <http://qudt.org/vocab/quantitykind/CelsiusTemperature>

                                     ] ,

                                     [ rdf:type owl:Restriction ;

                                       owl:onProperty <https://saref.etsi.org/core/hasValue> ;

                                       owl:hasValue "3.455"^^xsd:double

                                     ] .

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