mada boku kaerenai kanaa
mada boku kaerenai kanaa .
m a d a WORD_BOUNDARY b o k ɯ WORD_BOUNDARY k a e r e n a i WORD_BOUNDARY k a n aː WORD_BOUNDARY
m a d a WORD_BOUNDARY b o k u WORD_BOUNDARY k a e r e n a i WORD_BOUNDARY k a n a a WORD_BOUNDARY