itaiitai itaiitai itaiitai yo
itaiitai itaiitai itaiitai yo .
i t a i i t a i WORD_BOUNDARY i t a i i t a i WORD_BOUNDARY i t a i i t a i WORD_BOUNDARY j o WORD_BOUNDARY
i t a i i t a i WORD_BOUNDARY i t a i i t a i WORD_BOUNDARY i t a i i t a i WORD_BOUNDARY y o WORD_BOUNDARY