premise: Two boys are playing on the ground.
hypothesis: The two boys are brothers.
explanation_1: Not all boys are brothers.
premise_logic: exists e1 x1 x2.(n_ground(x2) & on(e1,x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1) & card_eq_2(x1))
hypothesis_logic: exists p1 x1.(n_boy(x1) & card_eq_2(x1) & exists x2.((x1 = x2) & n_brother(x2)))
premise_sim: exists e1 x1 x2.(v_play(e1) & on(e1,x2) & n_ground(x2) & n_boy(x1) & card_eq_2(x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_boy(x1) & exists x2.(n_brother(x2) & (x1 = x2)) & card_eq_2(x1))