question: Was M2 edited by M3 , executive produced by a film producer , and directed by M1 's founder 's sibling
query: SELECT count(*) WHERE {
  ?x0 a ns:film.producer .
  ?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 ?x2 .
  ?x2 ns:organization.organization_founder.organizations_founded M1 .
  FILTER ( ?x1 != ?x2 ) .
  M2 ns:film.film.directed_by ?x1 .
  M2 ns:film.film.edited_by M3 .
  M2 ns:film.film.executive_produced_by ?x0
  }