a los de atrás
a el de atrás
prepart det:art prep adv
a los de atrás .
a WORD_BOUNDARY l o̞ s WORD_BOUNDARY d e̞ WORD_BOUNDARY a t ɾ a s WORD_BOUNDARY
a WORD_BOUNDARY l o s WORD_BOUNDARY d e WORD_BOUNDARY a t r á s WORD_BOUNDARY . WORD_BOUNDARY