Was M2 influenced by a person , influenced by a film director , and influenced by M3
SELECT count(*) WHERE {
?x0 a ns:people.person .
?x1 a ns:film.director .
M2 ns:influence.influence_node.influenced_by ?x0 .
M2 ns:influence.influence_node.influenced_by ?x1 .
M2 ns:influence.influence_node.influenced_by M3
}