premise: Two boys dig in the sand on a beach.
hypothesis: Two boys are swimming at the beach
explanation_1: The boys cannot be digging in the sand and swimming simultaneously.
premise_logic: exists x1 x2 x3 x4.(n_sand(x3) & a_topic(x1) & on(x1,x4) & n_beach(x4) & in(x1,x3) & n_dig(x1) & of(x1,x2) & n_boy(x2) & card_eq_2(x1))
hypothesis_logic: exists e1 x1 x2.(n_beach(x2) & at(e1,x2) & Actor(e1,x1) & v_swim(e1) & n_boy(x1) & card_eq_2(x1))
premise_sim: exists x1 x2 x3 x4.(on(x1,x4) & of(x1,x2) & n_sand(x3) & n_dig(x1) & n_boy(x2) & n_beach(x4) & in(x1,x3) & card_eq_2(x1) & a_topic(x1))
hypothesis_sim: exists e1 x1 x2.(v_swim(e1) & n_boy(x1) & n_beach(x2) & card_eq_2(x1) & at(e1,x2) & Actor(e1,x1))