premise: A man is waterskiing on one ski.
hypothesis: He is a professional skier.
explanation_1: Just because, the man is waterskiing on one ski does not imply that he is a professional skier.
premise_logic: exists e1 x1 x2.(on(e1,x2) & n_ski(x2) & card_eq_1(x2) & Actor(e1,x1) & v_waterskie(e1) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_male(x1) & exists s1 x2.((x1 = x2) & n_skier(x2) & a_professional(s1) & Theme(s1,x2)))
premise_sim: exists e1 x1 x2.(v_waterskie(e1) & on(e1,x2) & n_ski(x2) & n_man(x1) & card_eq_1(x2) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_male(x1) & exists s1 x2.(n_skier(x2) & a_professional(s1) & Theme(s1,x2) & (x1 = x2)))