Question: Which organizations were founded in 1950?
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/> PREFIX prop: <http://dbpedia.org/property/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> SELECT DISTINCT ?uri ?string WHERE { ?uri rdf:type onto:Organisation . { ?uri prop:foundation ?date . } UNION { ?uri onto:formationYear ?date . } FILTER regex(?date,'^1950') . OPTIONAL { ?uri rdfs:label ?string . FILTER (lang(?string) = 'en') } }