[[ [Hanako-ga hashitta-ka] [Jiro-ga hashitta-ka]] mitai-ka] (oshiete).
 Hanako-NOM ran-KA Jiro-NOM ran-KA seem-KA tell
Tell me whether or not it seems to be that Hanako or Jiro ran.’ (✓YNQ) *‘Tell me which is true: Taro saw Hanako or he saw Jiro.’ (*AltQ)