yo sí me lo sé
yo sí me lo sé .
i o̞ WORD_BOUNDARY s i WORD_BOUNDARY m e̞ WORD_BOUNDARY l o̞ WORD_BOUNDARY s e̞ WORD_BOUNDARY
y o WORD_BOUNDARY s í WORD_BOUNDARY m e WORD_BOUNDARY l o WORD_BOUNDARY s é WORD_BOUNDARY . WORD_BOUNDARY