Question: WHat type of guitar was played a sa musicl instrument by the composer of "Stop this Train"?
Answer(s):
answer: Fender Stratocaster

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:music.composer.compositions ns:m.0v0c23z . 
?c ns:music.guitarist.guitars_played ?x .
}