itai itai itai itai wa
itai itai itai itai wa .
i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY w a WORD_BOUNDARY
i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY i t a i WORD_BOUNDARY w a WORD_BOUNDARY