doko kara haireba ii no
doko kara haireba ii no ?
d o k o WORD_BOUNDARY k a r a WORD_BOUNDARY h a i r e b a WORD_BOUNDARY i i WORD_BOUNDARY n o WORD_BOUNDARY
d o k o WORD_BOUNDARY k a r a WORD_BOUNDARY h a i r e b a WORD_BOUNDARY i i WORD_BOUNDARY n o WORD_BOUNDARY