Question: Who influenced Vincent Van Gogh and created a series of art pieces after haystacks?
Answer(s):
answer: Claude Monet

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.07_m2)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.07_m2 ns:influence.influence_node.influenced_by ?x .
?x ns:visual_art.visual_artist.art_series ns:m.0265mfh . 
}