question: Did M2 produce a film directed by and edited by M1
query: SELECT count(*) WHERE {
  ?x0 a ns:film.film .
  ?x0 ns:film.film.directed_by M1 .
  ?x0 ns:film.film.edited_by M1 .
  M2 ns:film.producer.film|ns:film.production_company.films ?x0
  }