What costume designer was a person that M2 and M3 were influenced by and M4 , M5 , and M6 were influenced by
SELECT DISTINCT ?x0 WHERE {
?x0 a ns:film.film_costumer_designer .
?x0 a ns:people.person .
?x0 ns:influence.influence_node.influenced M2 .
?x0 ns:influence.influence_node.influenced M3 .
?x0 ns:influence.influence_node.influenced M4 .
?x0 ns:influence.influence_node.influenced M5 .
?x0 ns:influence.influence_node.influenced M6
}