nan no koto nan no koto
nan no koto nan no koto .
n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY
n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY n a n WORD_BOUNDARY n o WORD_BOUNDARY k o t o WORD_BOUNDARY