no será al revés
no será al revés ?
n o̞ WORD_BOUNDARY s e̞ ɾ a WORD_BOUNDARY a l WORD_BOUNDARY ɾ e̞ β e̞ s WORD_BOUNDARY
n o WORD_BOUNDARY s e r á WORD_BOUNDARY a l WORD_BOUNDARY r e v é s WORD_BOUNDARY ? WORD_BOUNDARY