Did M1 influence M2 , influence M3 , influence a film director , and influence M4
SELECT count(*) WHERE {
?x0 a ns:film.director .
M1 ns:influence.influence_node.influenced ?x0 .
M1 ns:influence.influence_node.influenced M2 .
M1 ns:influence.influence_node.influenced M3 .
M1 ns:influence.influence_node.influenced M4
}