Question: To which company is Michael Dell a father company? 
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE {?uri onto:owningCompany <http://dbpedia.org/resource/Michael_Dell> . ?uri rdf:type onto:Company}