na Taro nan tte iu no
na taro nan tte iu no ?
n a WORD_BOUNDARY t a r o WORD_BOUNDARY n a n WORD_BOUNDARY t t e WORD_BOUNDARY i ɯ WORD_BOUNDARY n o WORD_BOUNDARY
n a WORD_BOUNDARY t a r o WORD_BOUNDARY n a n WORD_BOUNDARY t t e WORD_BOUNDARY i u WORD_BOUNDARY n o WORD_BOUNDARY