question: What film producer was influenced by M1 , M2 , M3 , and M4 , influenced by M5 , and influenced by a cinematographer of M6
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:influence.influence_node.influenced_by ?x1 .
  ?x0 ns:influence.influence_node.influenced_by M1 .
  ?x0 ns:influence.influence_node.influenced_by 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 .
  ?x1 ns:film.cinematographer.film M6
  }