premise: Three people on skis are standing behind a no skiing sign.
hypothesis: Three humans standing.
explanation_1: People are human and if they are standing then they are standing irrespective of where.
explanation_2: Humans are people, so standing people can be standing humans.
explanation_3: People is a synonym for humans. To be on skis, you usually are standing.
premise_logic: exists e1 x1 x2.(-exists x3 x4 x5.(behind(e1,x3) & Time(x3,x5) & n_a(x5) & n_sign(x3) & of(x3,x4) & n_skiing(x4)) & Actor(e1,x1) & v_stand(e1) & on(x1,x2) & n_ski(x2) & n_people(x1) & card_eq_3(x1))
hypothesis_logic: exists e1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_human(x1) & card_eq_3(x1))
premise_sim: exists e1 x1 x2.(v_stand(e1) & on(x1,x2) & n_ski(x2) & n_people(x1) & card_eq_3(x1) & all x3 x4 x5.(-of(x3,x4) | -n_skiing(x4) | -n_sign(x3) | -n_a(x5) | -behind(e1,x3) | -Time(x3,x5)) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_stand(e1) & n_human(x1) & card_eq_3(x1) & a_topic(x1) & Actor(e1,x2) & (x1 = x2))