Question: What is the name of the state tree of Alabama in 2008?
Answer(s):
answer: Pinus palustris

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:government.political_district.elections ns:m.02w95bm . 
?c ns:government.governmental_jurisdiction.official_symbols ?y .
?y ns:location.location_symbol_relationship.symbol ?x .
?y ns:location.location_symbol_relationship.Kind_of_symbol ns:m.04627dk .
}