question: Were M2 and M3 produced by and executive produced by a film editor that M1 was produced by and written by
query: SELECT count(*) WHERE {
  ?x0 a ns:film.editor .
  ?x0 ns:film.producer.film|ns:film.production_company.films M1 .
  ?x0 ns:film.writer.film M1 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.produced_by|ns:film.film.production_companies ?x0 .
  M3 ns:film.film.executive_produced_by ?x0 .
  M3 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }