kono ue naranakatta noni
kono ue naranakatta noni .
k o n o WORD_BOUNDARY ɯ e WORD_BOUNDARY n a r a n a k a t t a WORD_BOUNDARY n o n i WORD_BOUNDARY
k o n o WORD_BOUNDARY u e WORD_BOUNDARY n a r a n a k a t t a WORD_BOUNDARY n o n i WORD_BOUNDARY