Question: Which companies work in the aerospace industry as well as on nuclear reactor technology?
SPARQL:
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX onto: <http://dbpedia.org/ontology/> PREFIX res: <http://dbpedia.org/resource/> PREFIX prop: <http://dbpedia.org/property/> SELECT ?uri ?string WHERE { ?uri rdf:type onto:Company . ?uri prop:industry res:Aerospace . ?uri prop:industry res:Nuclear_reactor_technology . OPTIONAL {?uri rdfs:label ?string . FILTER (lang(?string) = 'en') } }