Question: What state in the Northeastern United States that have an official symbol of Acer Rubrum?
Answer(s):
answer: Rhode Island

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.027rjr)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.027rjr ns:location.location.contains ?x .
?x ns:government.governmental_jurisdiction.official_symbols ?c .
?c ns:location.location_symbol_relationship.symbol ns:m.018rmf . 
}