Was a film 's director influenced by a film director , influenced by M0 , and influenced by M1
SELECT count(*) WHERE {
?x0 ns:film.director.film ?x1 .
?x0 ns:influence.influence_node.influenced_by ?x2 .
?x0 ns:influence.influence_node.influenced_by M0 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x1 a ns:film.film .
?x2 a ns:film.director
}