question: Did M1 and M5 star a film director 's child , star M2 and M3 , and star M4
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x1 .
  ?x1 a ns:film.director .
  M1 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M1 ns:film.film.starring/ns:film.performance.actor M2 .
  M1 ns:film.film.starring/ns:film.performance.actor M3 .
  M1 ns:film.film.starring/ns:film.performance.actor M4 .
  M5 ns:film.film.starring/ns:film.performance.actor ?x0 .
  M5 ns:film.film.starring/ns:film.performance.actor M2 .
  M5 ns:film.film.starring/ns:film.performance.actor M3 .
  M5 ns:film.film.starring/ns:film.performance.actor M4
  }