premise: A man in swimming trunks plays in the ocean's waves.
hypothesis: A man is sitting on a beach.
explanation_1: swimming and sitting are different actions
explanation_2: It is a different activity to play in the ocean's waves than to be sitting on a beach.
explanation_3: A man cannot be swimming and sitting simultaneously
premise_logic: exists e1 x1 x2 x3 x4 x5.(n_wave(x5) & of(x5,x4) & n_ocean(x4) & in(e1,x5) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_trunk(x2) & of(x2,x3) & n_swimming(x3) & n_man(x1))
hypothesis_logic: exists e1 x1 x2.(on(e1,x2) & n_beach(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))