premise: A boy wearing a helmet is jumping his skateboard.
hypothesis: A boy is jumping his skateboard while his friends watch.
explanation_1: Jumping a skateboard does not imply that there are friends watching.
explanation_2: Just because the boy is performing a stunt does not imply it is for his friends to watch him.
explanation_3: Jumping a skateboard does not imply friends watch.
premise_logic: exists e2 e1 x1 x2 x3 x4.(Theme(e2,x4) & Actor(e2,x1) & v_jump(e2) & n_skateboard(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_helmet(x3) & (x1 = x2) & n_boy(x1))
hypothesis_logic: exists e2 e1 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x1) & v_watch(e2) & n_thing(x5) & while(e1,x4) & n_friend(x4) & of(x4,x1) & n_male(x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_jump(e1) & n_skateboard(x3) & of(x3,x1) & (x1 = x2) & n_boy(x1))