nani ni natta no kore
nani ni natta no kore ?
n a n i WORD_BOUNDARY n i WORD_BOUNDARY n a t t a WORD_BOUNDARY n o WORD_BOUNDARY k o r e WORD_BOUNDARY
n a n i WORD_BOUNDARY n i WORD_BOUNDARY n a t t a WORD_BOUNDARY n o WORD_BOUNDARY k o r e WORD_BOUNDARY