Question: How many airlines are members of the Star Alliance?
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/> PREFIX onto: <http://dbpedia.org/ontology/> PREFIX res: <http://dbpedia.org/resource/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> SELECT COUNT(DISTINCT ?uri) WHERE { ?uri rdf:type onto:Airline . ?uri onto:alliance res:Star_Alliance . }