Watashiwa [ [Hanakoga hashittaka] [Jiroga hashittaka]] mitaika] shiranai .
I-TOP  Hanako-NOM ran-KA Jiro-NOM ran-KA seem-KA know-NEG
I don’t know whether or not it seems that either Hanako or Jiro ran.’ (✓YNQ) ‘I don’t know which seems to be true: Hanako ran or Jiro ran.’ (*AltQ)