question: Was M1 distributed by M2 , produced by a film producer 's sibling , distributed by M3 , and distributed by M4
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.sibling_s/ns:people.sibling_relationship.sibling|ns:fictional_universe.fictional_character.siblings/ns:fictional_universe.sibling_relationship_of_fictional_characters.siblings ?x1 .
  ?x1 a ns:film.producer .
  FILTER ( ?x0 != ?x1 ) .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M2 .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M3 .
  M1 ns:film.film.distributors/ns:film.film_film_distributor_relationship.distributor M4 .
  M1 ns:film.film.produced_by|ns:film.film.production_companies ?x0
  }