Question: Which battles had the event of New York and New Jersey campaigns that was during George Washington's presidency?
Answer(s):
answer: Battle of Princeton
answer: Battle of Trenton

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.034rd)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.034rd ns:military.military_commander.military_commands ?y .
?y ns:military.military_command.military_conflict ?x .
?x ns:time.event.included_in_event ns:m.02fmsl . 
}