question: Was M2 edited by a Mexican actor , executive produced by M3 and M4 , and executive produced by M5 and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.actor .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  M2 ns:film.film.edited_by ?x0 .
  M2 ns:film.film.executive_produced_by M3 .
  M2 ns:film.film.executive_produced_by M4 .
  M2 ns:film.film.executive_produced_by M5 .
  M2 ns:film.film.executive_produced_by M6
  }