qual é a letra
qual é a letra ?
k o a l̪ˠ WORD_BOUNDARY ɛ WORD_BOUNDARY ɐ WORD_BOUNDARY l̪ˠ e t̪ ʁ ɐ WORD_BOUNDARY
q u a l WORD_BOUNDARY é WORD_BOUNDARY a WORD_BOUNDARY l e t r a WORD_BOUNDARY ? WORD_BOUNDARY