Fixed issues with the example file.

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

@prefix dcterms: <http://purl.org/dc/terms/> .

@prefix dctype: <http://purl.org/dc/dcmitype/> .

@prefix ex: <https://saref.etsi.org/saref4mari/v1.1.1/example/s4mari-sensor-example/> .

@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .

@prefix geosp: <http://www.opengis.net/ont/geosparql#> .

@prefix om: <http://www.ontology-of-units-of-measure.org/resource/om-2/> .

@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/> .

@prefix s4mari: <https://saref.etsi.org/saref4mari/> .

@prefix saref: <https://saref.etsi.org/core/> .

@prefix sosa: <http://www.w3.org/ns/sosa/> .

@prefix ssn: <http://www.w3.org/ns/ssn/> .

@prefix time: <http://www.w3.org/2006/time#> .

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

@base <https://saref.etsi.org/saref4mari/> .

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

<https://saref.etsi.org/saref4mari/v1.1.1/example/s4mari-sensor-example#> a dctype:Dataset ;

                                                             dcterms:license <https://forge.etsi.org/etsi-software-license> ;

                                                             dcterms:conformsTo <https://saref.etsi.org/core/v3.2.1/> ;

                                                             dcterms:conformsTo <https://saref.etsi.org/saref4mari/v1.1.1/> ;

                                                             dcterms:title "SAREF4MARI sensor example."@en ;

                                                             dcterms:description "SAREF4MARI sensor example."@en ;

                                                             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 ,

ex: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

                                              owl:hasValue ex: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 ,

ex: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

                                             owl:hasValue ex:Water_Temperature_20241128

                                           ] ,

                                           [ rdf:type owl:Restriction ;

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

# 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 ,

ex:Water_Temperature_20241128 rdf:type owl:NamedIndividual ,

                                     [ rdf:type owl:Class ;

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

                                                 )