question: Did M2 and M3 write a film edited by , executive produced by , and directed by a film editor 's parent
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by ?x1 .
  ?x0 ns:film.film.edited_by ?x1 .
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x1 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x2 .
  ?x2 a ns:film.editor .
  M2 ns:film.writer.film ?x0 .
  M3 ns:film.writer.film ?x0
  }