doko kara haireba ii no kanaa
doko kara haireba ii no kanaa ?
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 k a n aː 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 k a n a a WORD_BOUNDARY