premise: A man is attempting a skateboard trick.
hypothesis: A man is on a skateboard.
explanation_1: A man can only do a skateboard trick if he is on a skateboard.
premise_logic: exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_attempt(e1) & n_trick(x2) & of(x2,x3) & n_skateboard(x3) & n_man(x1))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_skateboard(x2)) & n_man(x1))
premise_sim: exists e1 x1 x2 x3.(v_attempt(e1) & of(x2,x3) & n_trick(x2) & n_skateboard(x3) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_man(x1) & exists x2.(on(x1,x2) & n_skateboard(x2)))