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