doko ga tonneru na no
doko ga tonneru na no ?
d o k o WORD_BOUNDARY g a WORD_BOUNDARY t o n n e r ɯ WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY
d o k o WORD_BOUNDARY g a WORD_BOUNDARY t o n n e r u WORD_BOUNDARY n a WORD_BOUNDARY n o WORD_BOUNDARY