Question: Name the president who had relatives in Clinton family and lieutenant named Joe Purcell?
SPARQL query: SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/relation> <http://dbpedia.org/resource/Clinton_family> . ?uri <http://dbpedia.org/ontology/lieutenant> <http://dbpedia.org/resource/Joe_Purcell>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/President>}
Answer: The president who had relatives in Clinton family and lieutenant named Joe Purcell is [Bill Clinton].