a koko wa tonneru na no
a koko wa tonneru na no ?
a WORD_BOUNDARY k o k o WORD_BOUNDARY w a WORD_BOUNDARY t o n n e r ɯ WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY
a WORD_BOUNDARY k o k o WORD_BOUNDARY w a WORD_BOUNDARY t o n n e r u WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY