na na nan da tte hora
na na nan da tte hora .
n a WORD_BOUNDARY n a WORD_BOUNDARY n a n WORD_BOUNDARY d a WORD_BOUNDARY t t e WORD_BOUNDARY h o r a WORD_BOUNDARY
n a WORD_BOUNDARY n a WORD_BOUNDARY n a n WORD_BOUNDARY d a WORD_BOUNDARY t t e WORD_BOUNDARY h o r a WORD_BOUNDARY