minai kara wakaranai no
minai kara wakaranai no ?
m i n a i WORD_BOUNDARY k a r a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY n o WORD_BOUNDARY
m i n a i WORD_BOUNDARY k a r a WORD_BOUNDARY w a k a r a n a i WORD_BOUNDARY n o WORD_BOUNDARY