premise: Skateboarder jumps off a 5 ft cliff, performing a stunt.
hypothesis: A skateboarder is about to fall off his skateboard.
explanation_1: Just because he is going to jump off doesn't mean he is going to fall.
explanation_2: A skateboarder performing a stunt does not necessarily mean that the skateboarder will fall off of the skateboard.
explanation_3: Just because the skateboarder jumps off of a 5 ft cliff does not mean that he will fall off of his skateboard.
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(ne_nam_skateboarder(x1) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x1) & v_perform(e2) & n_stunt(x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_cliff(x2) & of(x2,x3) & n_ft(x3) & n_date(x2) & a_date_day_05(x2) & a_date_day_05(x2))
hypothesis_logic: exists p1 p2 x1 x2 x3.(Topic(p1,p2) & exists e1 s1.(a_off(s1) & Manner(e1,s1) & Actor(e1,x1) & v_fall(e1)) & about(x2,x3) & n_skateboard(x3) & of(x3,x1) & n_male(x1) & n_skateboarder(x2) & n_skateboarder(x1))