kaidan an no ka kore
kaidan an no ka kore ?
k a i d a n WORD_BOUNDARY a n WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY k o r e WORD_BOUNDARY
k a i d a n WORD_BOUNDARY a n WORD_BOUNDARY n o WORD_BOUNDARY k a WORD_BOUNDARY k o r e WORD_BOUNDARY