nande kao ga kowakatta no kanaa
nande kao ga kowakatta no kanaa ?
n a n d e WORD_BOUNDARY k a o WORD_BOUNDARY g a WORD_BOUNDARY k o w a k a t t a WORD_BOUNDARY n o WORD_BOUNDARY k a n aː WORD_BOUNDARY
n a n d e WORD_BOUNDARY k a o WORD_BOUNDARY g a WORD_BOUNDARY k o w a k a t t a WORD_BOUNDARY n o WORD_BOUNDARY k a n a a WORD_BOUNDARY