si yo no he oído
si yo no he oído .
s i WORD_BOUNDARY i o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY e̞ WORD_BOUNDARY o̞ i d o̞ WORD_BOUNDARY
s i WORD_BOUNDARY y o WORD_BOUNDARY n o WORD_BOUNDARY h e WORD_BOUNDARY o í d o WORD_BOUNDARY . WORD_BOUNDARY