Question: What location has GNIS feature ID 587310 and is where the Battle of Antietam Creek took place?
Answer(s):
answer: Sharpsburg

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.gnis_feature_id "587310" . 
}