premise: A guy on a skateboard, jumping off some steps.
hypothesis: a guy on a bike
explanation_1: The guy can't be on both the bike and skateboard.
explanation_2: The guy cannot be simultaneously on a skateboard and a bike.
explanation_3: One cannot be on a skateboard and a bike simultaneously.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & a_off(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_jump(e1) & n_step(x4) & (x2 = x3) & n_skateboard(x2) & n_guy(x1))
hypothesis_logic: exists x1 x2.(a_topic(x1) & on(x1,x2) & n_bike(x2) & n_guy(x1))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_jump(e1) & on(x1,x2) & n_step(x4) & n_skateboard(x2) & n_guy(x1) & a_topic(x1) & a_off(s1) & Theme(e1,x4) & Manner(e1,s1) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: exists x1 x2.(on(x1,x2) & n_guy(x1) & n_bike(x2) & a_topic(x1))