Question: In what State did the bloody battle of Antietam take place also contains contains the Gate of Heaven Cemetery?
Answer(s):
answer: Maryland

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0lkxb)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0lkxb ns:time.event.locations ?x .
?x ns:location.location.contains ns:m.010lql41 . 
}