kore wa nan ni notta no
kore wa nan ni notta no ?
k o r e WORD_BOUNDARY w a WORD_BOUNDARY n a n WORD_BOUNDARY n i WORD_BOUNDARY n o t t a WORD_BOUNDARY n o WORD_BOUNDARY
k o r e WORD_BOUNDARY w a WORD_BOUNDARY n a n WORD_BOUNDARY n i WORD_BOUNDARY n o t t a WORD_BOUNDARY n o WORD_BOUNDARY