question: Were M2 and M5 produced by M3 , executive produced by a Mexican actor , and edited by M4
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  M2 ns:film.film.edited_by M4 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.produced_by|ns:film.film.production_companies M3 .
  M5 ns:film.film.edited_by M4 .
  M5 ns:film.film.executive_produced_by ?x0 .
  M5 ns:film.film.produced_by|ns:film.film.production_companies M3
  }