What film producer that M4 , M5 , M6 , and M7 were played by was influenced by M1 and M2 and influenced by M3
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.producer .
?x0 ns:film.actor.film/ns:film.performance.character M4 .
?x0 ns:film.actor.film/ns:film.performance.character M5 .
?x0 ns:film.actor.film/ns:film.performance.character M6 .
?x0 ns:film.actor.film/ns:film.performance.character M7 .
?x0 ns:influence.influence_node.influenced_by M1 .
?x0 ns:influence.influence_node.influenced_by M2 .
?x0 ns:influence.influence_node.influenced_by M3
}