Was a cinematographer influenced by a film director , influenced by M1 , and influenced by M2
SELECT count(*) WHERE {
?x0 a ns:film.cinematographer .
?x0 ns:influence.influence_node.influenced_by ?x1 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x1 a ns:film.director
}