Question: Where was the company who is the operator of Harihar Airport founded ?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Harihar_Airport> onto:operator ?x . ?x prop:foundation ?uri  . ?x rdf:type onto:Company}