premise: A couple is walking in a building.
hypothesis: They are walking into the building.
explanation_1: The word they indicates multiple people, which is also true of the word couple.
premise_logic: exists e1 x1 x2.(in(e1,x2) & n_building(x2) & Actor(e1,x1) & v_walk(e1) & n_couple(x1))
hypothesis_logic: exists e1 x1 x2.(n_building(x2) & n_thing(x1) & into(e1,x2) & Actor(e1,x1) & v_walk(e1))
premise_sim: exists e1 x1 x2.(v_walk(e1) & n_couple(x1) & n_building(x2) & in(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_walk(e1) & n_thing(x1) & n_building(x2) & into(e1,x2) & Actor(e1,x1))