ésto es un ratón
ésto es un ratón .
e̞ s t o̞ WORD_BOUNDARY e̞ s WORD_BOUNDARY u n WORD_BOUNDARY ɾ a t o̞ n WORD_BOUNDARY
é s t o WORD_BOUNDARY e s WORD_BOUNDARY u n WORD_BOUNDARY r a t ó n WORD_BOUNDARY . WORD_BOUNDARY