Question: Who is listed as an influence for both Dashiell Hammett and Sir Author Conan Doyle?
Answer(s):
answer: Edgar Allan Poe

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0ky1)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0ky1 ns:influence.influence_node.influenced_by ?x .
?x ns:influence.influence_node.influenced ns:m.012cph . 
}