yo no lo he oido
yo no lo he oido .
i o̞ WORD_BOUNDARY n o̞ WORD_BOUNDARY l o̞ WORD_BOUNDARY e̞ WORD_BOUNDARY o̞ i d o̞ WORD_BOUNDARY
y o WORD_BOUNDARY n o WORD_BOUNDARY l o WORD_BOUNDARY h e WORD_BOUNDARY o i d o WORD_BOUNDARY . WORD_BOUNDARY