***** Queries in SPARQL *****

===== Objects of the Dinosaur class

SELECT ?dino
WHERE { ?dino rdf:type dino:Dinosaur }

===== Objects of the Place class

SELECT ?local
WHERE { ?local rdf:type dino:Place }

===== All triple (resource, property, value)

SELECT ?r ?p ?v
WHERE { ?r ?p ?v }

===== All classes

SELECT ?classe
WHERE { ?classe rdf:type owl:Class }

===== Objects and their origins

SELECT ?din ?or
WHERE { ?din dino:origin ?or }

===== Objects of the Dinosaur class and their origins

SELECT ?din ?or
WHERE { ?din rdf:type dino:Dinosaur .
                 ?din dino:origin ?or }

===== Objects whose origin is Lance_Creek

SELECT ?din
WHERE { ?din dino:origin dino:Lance_Creek }

===== Objects whose origin is a place part of Converse_County

SELECT ?din
WHERE { ?din dino:origin ?pl .
                 ?pl dino:partOf dino:Converse_County }

===== Objects whose origin is a place1, part of a place2, which is part of Wyoming

SELECT ?din
WHERE { ?din dino:origin ?pl1 .
                 ?pl1 dino:partOf ?pl2 .
                 ?pl2 dino:partOf dino:Wyoming }

===== Objects whose origin is a place1, part of a place2,
===== which is part of a place3, which is part of Wyoming
				 
SELECT ?din
WHERE { ?din dino:origin ?pl1 .
                 ?pl1 dino:partOf ?pl2 .
                 ?pl2 dino:partOf ?pl3 .
                 ?pl3 dino:partOf dino:USA }

===== Union of objects whose origin is Lance_Creek and Hell_Creek
				 
SELECT ?din
WHERE {
                { ?din dino:origin dino:Lance_Creek }
                UNION
                { ?din dino:origin dino:Hell_Creek }
              }