Question: Where did Chancellorsville battle take place, with the location GNIS feature ID number is 1500139?
Answer(s):
answer: Spotsylvania County

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0d0mw)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0d0mw ns:time.event.locations ?x .
?x ns:location.location.gnis_feature_id "1500139" . 
}