ai estou a pisar isto
ai estou a pisar isto .
ai WORD_BOUNDARY ɯ ʃ t̪ u WORD_BOUNDARY ɐ WORD_BOUNDARY p i z a ʁ WORD_BOUNDARY i ʃ t̪ u WORD_BOUNDARY
a i WORD_BOUNDARY e s t o u WORD_BOUNDARY a WORD_BOUNDARY p i s a r WORD_BOUNDARY i s t o WORD_BOUNDARY . WORD_BOUNDARY