Question: In which county did Chancellorsville battle take place, and as well the event, the Battle of Salem Church took place?
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.events ns:m.04w7sq . 
}