nana kowaku nai wa yo
nana kowaku nai wa yo .
n a n a WORD_BOUNDARY k o w a k ɯ WORD_BOUNDARY n a i WORD_BOUNDARY w a WORD_BOUNDARY j o WORD_BOUNDARY
n a n a WORD_BOUNDARY k o w a k u WORD_BOUNDARY n a i WORD_BOUNDARY w a WORD_BOUNDARY y o WORD_BOUNDARY