question: Were M3 , M5 , and M6 influenced by a film editor that edited M1 and M2 and influenced by M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.editor.film M1 .
  ?x0 ns:film.editor.film M2 .
  M3 ns:influence.influence_node.influenced_by ?x0 .
  M3 ns:influence.influence_node.influenced_by M4 .
  M5 ns:influence.influence_node.influenced_by ?x0 .
  M5 ns:influence.influence_node.influenced_by M4 .
  M6 ns:influence.influence_node.influenced_by ?x0 .
  M6 ns:influence.influence_node.influenced_by M4
  }