wakattenai kara hai nanka dekinai ne
wakattenai kara hai nanka dekinai ne .
w a k a t t e n a i WORD_BOUNDARY k a r a WORD_BOUNDARY h a i WORD_BOUNDARY n a n k a WORD_BOUNDARY d e k i n a i WORD_BOUNDARY n e WORD_BOUNDARY
w a k a t t e n a i WORD_BOUNDARY k a r a WORD_BOUNDARY h a i WORD_BOUNDARY n a n k a WORD_BOUNDARY d e k i n a i WORD_BOUNDARY n e WORD_BOUNDARY