Question: What was the location of residence for the person who said "Who is John Galt?"?
Answer(s):
answer: Saint Petersburg

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:people.person.quotations ns:m.09wnxjq . 
?c ns:people.person.places_lived ?y .
?y ns:people.place_lived.location ?x .
}