nani katte kita n dai
nani katte kita n dai ?
n a n i WORD_BOUNDARY k a t t e WORD_BOUNDARY k i t a WORD_BOUNDARY n WORD_BOUNDARY d a i WORD_BOUNDARY
n a n i WORD_BOUNDARY k a t t e WORD_BOUNDARY k i t a WORD_BOUNDARY n WORD_BOUNDARY d a i WORD_BOUNDARY