demo itai yo hikareta kara
demo itai yo hikareta kara .
d e m o WORD_BOUNDARY i t a i WORD_BOUNDARY j o WORD_BOUNDARY h i k a r e t a WORD_BOUNDARY k a r a WORD_BOUNDARY
d e m o WORD_BOUNDARY i t a i WORD_BOUNDARY y o WORD_BOUNDARY h i k a r e t a WORD_BOUNDARY k a r a WORD_BOUNDARY