Question: The person who invented Incandescent light bulbs is most famous for what?
Answer(s):
answer: Businessperson
answer: Film Producer
answer: Film director
answer: Inventor
answer: Scientist
answer: Entrepreneur

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:law.inventor.us_patents ns:m.0cpk7 . 
?c ns:people.person.profession ?x .
}