Did M2 , M5 , M6 , and M7 influence M3 and M4 and influence M1 's Japanese star
SELECT count(*) WHERE {
?x0 ns:film.actor.film/ns:film.performance.film M1 .
?x0 ns:people.person.nationality ns:m.03_3d .
M2 ns:influence.influence_node.influenced ?x0 .
M2 ns:influence.influence_node.influenced M3 .
M2 ns:influence.influence_node.influenced M4 .
M5 ns:influence.influence_node.influenced ?x0 .
M5 ns:influence.influence_node.influenced M3 .
M5 ns:influence.influence_node.influenced M4 .
M6 ns:influence.influence_node.influenced ?x0 .
M6 ns:influence.influence_node.influenced M3 .
M6 ns:influence.influence_node.influenced M4 .
M7 ns:influence.influence_node.influenced ?x0 .
M7 ns:influence.influence_node.influenced M3 .
M7 ns:influence.influence_node.influenced M4
}