Question: What has been founded in the state that Denton county, Texas is a part of? 
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/part> <http://dbpedia.org/resource/Denton_County,_Texas> . ?uri <http://dbpedia.org/ontology/foundationPlace> ?x  . }
Answer: The companies founded in part of Denton County, Texas are [answer].