Question: What is the state flower of the US state whose capital city is Denver?
Answer(s):
answer: Aquilegia caerulea

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:location.us_state.capital ns:m.02cl1 . 
?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.04627gn .
}