Question: What is the inventor of the telephone known for?
Answer(s):
answer: Telephone

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.07cx4 . 
?c ns:user.lindenb.default_domain.scientist.known_for ?x .
}