koko ni wa nakatta kke ne
koko ni wa nakatta kke ne .
k o k o WORD_BOUNDARY n i WORD_BOUNDARY w a WORD_BOUNDARY n a k a t t a WORD_BOUNDARY k k e WORD_BOUNDARY n e WORD_BOUNDARY
k o k o WORD_BOUNDARY n i WORD_BOUNDARY w a WORD_BOUNDARY n a k a t t a WORD_BOUNDARY k k e WORD_BOUNDARY n e WORD_BOUNDARY