a koko ni hikkakete oku kara
a koko ni hikkakete oku kara .
a WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY h i k k a k e t e WORD_BOUNDARY o k ɯ WORD_BOUNDARY k a r a WORD_BOUNDARY
a WORD_BOUNDARY k o k o WORD_BOUNDARY n i WORD_BOUNDARY h i k k a k e t e WORD_BOUNDARY o k u WORD_BOUNDARY k a r a WORD_BOUNDARY