premise: Two men are participating in a race.
hypothesis: A couple of guys are in a race.
explanation_1: A couple guys are in a race, participating in a race refers to the type of activity.
premise_logic: exists e1 x1 x2.(in(e1,x2) & n_race(x2) & Actor(e1,x1) & v_participate(e1) & n_man(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1 x2.(exists x3.(in(x1,x3) & n_race(x3)) & of(x1,x2) & n_guy(x2) & n_couple(x1))
premise_sim: exists e1 x1 x2.(v_participate(e1) & n_race(x2) & n_man(x1) & in(e1,x2) & card_eq_2(x1) & Actor(e1,x1))
hypothesis_sim: exists x1 x2.(of(x1,x2) & n_guy(x2) & n_couple(x1) & exists x3.(n_race(x3) & in(x1,x3)))