nan da kono karai no wa
nan da kono karai no wa ?
n a n WORD_BOUNDARY d a WORD_BOUNDARY k o n o WORD_BOUNDARY k a r a i WORD_BOUNDARY n o WORD_BOUNDARY w a WORD_BOUNDARY
n a n WORD_BOUNDARY d a WORD_BOUNDARY k o n o WORD_BOUNDARY k a r a i WORD_BOUNDARY n o WORD_BOUNDARY w a WORD_BOUNDARY