atrás y esto es alante
atrás y esto es alante .
a t ɾ a s WORD_BOUNDARY i WORD_BOUNDARY e̞ s t o̞ WORD_BOUNDARY e̞ s WORD_BOUNDARY a l a n t e̞ WORD_BOUNDARY
a t r á s WORD_BOUNDARY y WORD_BOUNDARY e s t o WORD_BOUNDARY e s WORD_BOUNDARY a l a n t e WORD_BOUNDARY . WORD_BOUNDARY