Question: Who operates the railway line which begins in Minneapolis?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/routeStart> <http://dbpedia.org/resource/Minneapolis> . ?x <http://dbpedia.org/ontology/operatedBy> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/RailwayLine>}