question: What was produced by and executive produced by a child of M0 's sibling
query: SELECT DISTINCT ?x0 WHERE {
  ?x0 ns:film.film.executive_produced_by ?x1 .
  ?x0 ns:film.film.produced_by|ns:film.film.production_companies ?x1 .
  ?x1 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x2 .
  ?x2 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 M0 .
  FILTER ( ?x2 != M0 )
  }