aí ai ai i i i
aí ai ai i i i .
a i WORD_BOUNDARY a i WORD_BOUNDARY a i WORD_BOUNDARY i WORD_BOUNDARY i WORD_BOUNDARY i WORD_BOUNDARY
a í WORD_BOUNDARY a i WORD_BOUNDARY a i WORD_BOUNDARY i WORD_BOUNDARY i WORD_BOUNDARY i WORD_BOUNDARY . WORD_BOUNDARY