premise: A couple walks along a sidewalk.
hypothesis: Two people are walking.
explanation_1: People are walking is a rephrasing of a couple walks.
premise_logic: exists e1 x1 x2.(along(e1,x2) & n_sidewalk(x2) & Actor(e1,x1) & v_walk(e1) & n_couple(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_people(x1) & card_eq_2(x1))
premise_sim: exists e1 x1 x2.(v_walk(e1) & n_sidewalk(x2) & n_couple(x1) & along(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_walk(e1) & n_people(x1) & card_eq_2(x1) & Actor(e1,x1))