question: What was written by a writer of M2 , M3 , and M4 , executive produced by M0 , and executive produced by M1 's sibling
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.executive_produced_by M0 .
  ?x0 ns:film.film.written_by ?x2 .
  ?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 .
  ?x2 ns:film.writer.film M2 .
  ?x2 ns:film.writer.film M3 .
  ?x2 ns:film.writer.film M4 .
  FILTER ( ?x1 != M1 )
  }