question: Were M3 and M4 edited by a female sibling of M1 and written by a writer of M0
query: SELECT count(*) WHERE {
  ?x0 ns:film.writer.film M0 .
  ?x1 ns:people.person.gender ns:m.02zsn .
  ?x1 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 M1 .
  FILTER ( ?x1 != M1 ) .
  M3 ns:film.film.edited_by ?x1 .
  M3 ns:film.film.written_by ?x0 .
  M4 ns:film.film.edited_by ?x1 .
  M4 ns:film.film.written_by ?x0
  }