doko ni ireru ka oboeteru
doko ni ireru ka oboeteru ?
d o k o WORD_BOUNDARY n i WORD_BOUNDARY i r e r ɯ WORD_BOUNDARY k a WORD_BOUNDARY o b o e t e r ɯ WORD_BOUNDARY
d o k o WORD_BOUNDARY n i WORD_BOUNDARY i r e r u WORD_BOUNDARY k a WORD_BOUNDARY o b o e t e r u WORD_BOUNDARY