Question: What Ontario airport is nearest to downtown Toronto?
Answer(s):
answer: Billy Bishop Toronto City Airport

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0h7h6)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0h7h6 ns:travel.travel_destination.how_to_get_here ?y .
?y ns:travel.transportation.transport_terminus ?x .
?y ns:travel.transportation.mode_of_transportation ns:m.025t3bg .
?x ns:location.location.containedby ns:m.05kr_ . 
}