question: Were M2 , M3 , M4 , and M5 executive produced by a actor and executive produced by a film editor
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x1 a ns:film.editor .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.executive_produced_by ?x1 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.executive_produced_by ?x1 .
  M4 ns:film.film.executive_produced_by ?x0 .
  M4 ns:film.film.executive_produced_by ?x1 .
  M5 ns:film.film.executive_produced_by ?x0 .
  M5 ns:film.film.executive_produced_by ?x1
  }