question: Was M2 's female editor 's male sibling 's country of nationality M3
query: SELECT count(*) WHERE {
  ?x0 ns:people.person.gender ns:m.05zppz .
  ?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.editor.film M2 .
  ?x1 ns:people.person.gender ns:m.02zsn .
  FILTER ( ?x0 != ?x1 ) .
  M3 ^ns:people.person.nationality ?x0
  }