question: Did a male Mexican film producer whose child played M7 direct M3 , M4 , M5 , and M6
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?x0 ns:film.director.film M3 .
  ?x0 ns:film.director.film M4 .
  ?x0 ns:film.director.film M5 .
  ?x0 ns:film.director.film M6 .
  ?x0 ns:people.person.children|ns:fictional_universe.fictional_character.children|ns:organization.organization.child/ns:organization.organization_relationship.child ?x1 .
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?x0 ns:people.person.nationality ns:m.0b90_r .
  ?x1 ns:film.actor.film/ns:film.performance.character M7
  }