premise: Two people are walking down the street holding hands in the fall.
hypothesis: A couple is outside walking.
explanation_1: A couple entails two people and walking down the street means outside walking.
explanation_2: A couple means two. Two people walking outside holding hands are a couple.
explanation_3: Since the people are holding hands it is implied that they are a couple.  It can be inferred that they are outside since they are walking down the street.
premise_logic: exists e1 e2 x1 x2 x3 x4.(n_fall(x4) & n_street(x2) & for(e1,e2) & in(e2,x4) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_hand(x3) & down(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1.(exists s1 x2.((x1 = x2) & n_walking(x2) & a_outside(s1) & Theme(s1,x2)) & n_couple(x1))