question: Was M2 executive produced by M1 's child 's Spanish sibling , written by M3 , and edited by M4
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.nationality ns:m.06mkj .
  ?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:people.person.parents|ns:fictional_universe.fictional_character.parents|ns:organization.organization.parent/ns:organization.organization_relationship.parent M1 .
  FILTER ( ?x0 != ?x1 ) .
  M2 ns:film.film.edited_by M4 .
  M2 ns:film.film.executive_produced_by ?x0 .
  M2 ns:film.film.written_by M3
  }