question: Was M1 edited by M3 , executive produced by M2 , and produced by a film producer
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  M1 ns:film.film.edited_by M3 .
  M1 ns:film.film.executive_produced_by M2 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }