Question: Who influenced the person that said "A good picture is equivalent to a good deed?
Answer(s):
answer: Eugène Delacroix
answer: Claude Monet
answer: Jean-François Millet
answer: Jozef Israëls
answer: Anton Mauve
answer: Paul Cézanne
answer: Fernand Cormon
answer: Rembrandt
answer: Willem Roelofs
answer: Peter Paul Rubens

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.048hbpf . 
?c ns:influence.influence_node.influenced_by ?x .
}