não são só letras
não são só letras !
n̪ ɐ̃u̜ WORD_BOUNDARY s ɐ̃u̜ WORD_BOUNDARY s ɔ WORD_BOUNDARY l̪ˠ e t̪ ʁ ɐ ʃ WORD_BOUNDARY
n ã o WORD_BOUNDARY s ã o WORD_BOUNDARY s ó WORD_BOUNDARY l e t r a s WORD_BOUNDARY ! WORD_BOUNDARY