Question: What car company does Ford Motor own whose headquarters is in Citytown Brentwood?
Answer(s):
answer: Ford of Britain

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.02zs4)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.02zs4 ns:automotive.company.make_s ?x .
?x ns:organization.organization.headquarters ?c .
?c ns:location.mailing_address.citytown ns:m.01gbw . 
}