Question: Where is Howard University located, that appointed Vincent C. Gray, to a governmental position?
Answer(s):
answer: Washington, D.C.

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0217m9)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0217m9 ns:location.location.containedby ?x .
?x ns:government.governmental_jurisdiction.governing_officials ?c .
?c ns:government.government_position_held.appointed_by ns:m.07t0z5 . 
}