question: Was M4 written by and edited by a film director that influenced M1 and M2 and influenced M3
query: SELECT count(*) WHERE {
  ?x0 a ns:film.director .
  ?x0 ns:influence.influence_node.influenced M1 .
  ?x0 ns:influence.influence_node.influenced M2 .
  ?x0 ns:influence.influence_node.influenced M3 .
  M4 ns:film.film.edited_by ?x0 .
  M4 ns:film.film.written_by ?x0
  }