premise: Kids are playing in the sand.
hypothesis: Kids are swimming.
explanation_1: They cannot be in the sand and swimming simultaneously.
premise_logic: exists e1 x1 x2.(n_sand(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_kid(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_swim(e1) & n_kid(x1))
premise_sim: exists e1 x1 x2.(v_play(e1) & n_sand(x2) & n_kid(x1) & in(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_swim(e1) & n_kid(x1) & Actor(e1,x1))