question: Were M2 , M3 , and M4 edited by , executive produced by , and written by a film editor that M1 was edited by
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.editor.film M1 .
  M2 ns:film.film.edited_by ?x0 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.written_by ?x0 .
  M3 ns:film.film.edited_by ?x0 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.edited_by ?x0 .
  M4 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.written_by ?x0
  }