a koko kara non no ka
a koko kara non no ka .
a WORD_BOUNDARY k o k o WORD_BOUNDARY k a r a WORD_BOUNDARY n o n WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY
a WORD_BOUNDARY k o k o WORD_BOUNDARY k a r a WORD_BOUNDARY n o n WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY