premise: A man gets a skateboard up on a big rock.
hypothesis: The guy is on a rock with a skateboard.
explanation_1: Man is guy.
explanation_2: A man takes a skateboard onto a big rock, and so he is now on the rock with a skateboard.
explanation_3: "The guy is on a rock with a skateboard" means the same as "A man gets a skateboard up on a rock."
premise_logic: exists e1 s1 s2 x1 x2 x3.(on(e1,x3) & n_rock(x3) & a_big(s2) & Theme(s2,x3) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_get(e1) & n_skateboard(x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(n_guy(x1) & exists x2 x3.(on(x1,x2) & with(x2,x3) & n_skateboard(x3) & n_rock(x2)))
premise_sim: exists e1 s1 s2 x1 x2 x3.(v_get(e1) & on(e1,x3) & n_skateboard(x2) & n_rock(x3) & n_man(x1) & a_up(s1) & a_big(s2) & Theme(s2,x3) & Theme(e1,x2) & Manner(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_guy(x1) & exists x2 x3.(with(x2,x3) & on(x1,x2) & n_skateboard(x3) & n_rock(x2)))