ningen tte shiranai wa
ningen tte shiranai wa .
n i n g e n WORD_BOUNDARY t t e WORD_BOUNDARY ʃ i r a n a i WORD_BOUNDARY w a WORD_BOUNDARY
n i n g e n WORD_BOUNDARY t t e WORD_BOUNDARY s h i r a n a i WORD_BOUNDARY w a WORD_BOUNDARY