- Which exhibits are located in UoAMuseumRoomA1?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
SELECT ?x 
WHERE { 
?x  geonames:locatedIn meso:UoAMuseumRoomA1
}

- How many sensors (all kinds) are hosted by IoTmuseumPlatformLG?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
SELECT (COUNT(?x) AS ?numOfSensors)
WHERE {
meso:IoTmuseumPlatformLG sosa:hosts ?x
}

- Which smart lamps have trust value = 0.7 and lights Painting01?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX iottrust:<http://i-lab.aegean.gr/kotis/Ontologies/IoT/IoT-trust-onto.owl#>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
SELECT ?x
WHERE {
?x iottrust:hasTrustValue 0.7.
?x meso:lights meso:Painting01.
}

- Which rooms have been visited  by Visitor01 visited?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
SELECT ?x 
WHERE { 
meso:Visitor01 meso:visits ?x
}

- What measurements have been made in UoAMuseumRoomA1 on 09/09/2021?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
PREFIX :<http://i-lab.aegean.gr/kotis/Ontologies/SmartMuseumOnto/SmartMuseumOnto.owl#>
SELECT ?Observations
WHERE {
?Observations sosa:hasFeatureOfInterest meso:UoAMuseumRoomA1.
?Observations sosa:resultTime ?resultTime 
FILTER(?resultTime="2021-09-09T11:00:12Z"^^xsd:dateTime).
}

- For observations made for UoAMuseumRoomA1 at 11.00, 11/09/2021, what is the result of humidity measurements?
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
PREFIX :<http://i-lab.aegean.gr/kotis/Ontologies/SmartMuseumOnto/SmartMuseumOnto.owl#>
SELECT ?observation ?humidity
WHERE {
?observation sosa:hasFeatureOfInterest meso:UoAMuseumRoomA1.
?observation sosa:observedProperty :humidityInMuseumRoom.	
?observation sosa:hasSimpleResult ?humidity.
?observation sosa:resultTime ?resultTime.
FILTER(?resultTime="2021-09-11T11:00:12Z"^^xsd:dateTime).
}

- How many sculptures are located in UoAMuseumRoomA2?
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX geonames: <http://www.geonames.org/ontology#>
PREFIX sosa:<http://www.w3.org/ns/sosa/>
PREFIX meso:<http://i-lab.aegean.gr/kotis/Ontologies/Meso/Meso.owl#>
SELECT (COUNT(?x) AS ?numOfSculptures)
WHERE {
?x rdf:type meso:Exhibit_sculpture.
?x geonames:locatedIn meso:UoAMuseumRoomA2.
}