premise: An old woman walking down the street.
hypothesis: A young women walking down the street.
explanation_1: The subject is either young or old.
explanation_2: young is opposite of old
explanation_3: An old woman cannot be young women.
premise_logic: exists e1 s1 s2 x1 x2 x3.(n_street(x3) & a_topic(x1) & a_down(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_woman(x1) & a_old(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_street(x3) & a_topic(x1) & down(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_woman(x1) & a_young(s1) & Theme(s1,x1))