Question: Who founded a company which served Mid Wales ?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/regionServed> <http://dbpedia.org/resource/Mid_Wales> . ?x <http://dbpedia.org/ontology/foundedBy> ?uri  . }
Answer: [Samuel Arthur Brain, Andrew Carnegie] founded a company which served Mid Wales.