Question: Name the co-founder of the record labels which have one of the founder as Chris DuBois ?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/founder> <http://dbpedia.org/resource/Chris_DuBois> . ?x <http://dbpedia.org/property/founder> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/RecordLabel>}