question: Did a costume designer that M1 and M2 were influenced by and M3 , M4 , M5 , and M6 influenced play M7
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film_costumer_designer .
  ?x0 ns:film.actor.film/ns:film.performance.character M7 .
  ?x0 ns:influence.influence_node.influenced M1 .
  ?x0 ns:influence.influence_node.influenced M2 .
  ?x0 ns:influence.influence_node.influenced_by M3 .
  ?x0 ns:influence.influence_node.influenced_by M4 .
  ?x0 ns:influence.influence_node.influenced_by M5 .
  ?x0 ns:influence.influence_node.influenced_by M6
  }