premise: This man is surfing.
hypothesis: A man is on water.
explanation_1: Surfing is done on the water.
premise_logic: exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_surf(e1))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_water(x2)) & n_man(x1))
premise_sim: exists e1 x1.(v_surf(e1) & n_man(x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(on(x1,x2) & n_water(x2)))