question: Was M2 M1 's prequel 's producer 's Swedish sibling 's child
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.0d0vqn .
  ?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 ns:film.producer.film|ns:film.production_company.films ?x2 .
  ?x2 ns:film.film.sequel M1 .
  FILTER ( ?x0 != ?x1 ) .
  M2 ns:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent ?x0
  }