premise: A man in a blue helmet jumping off of a hill on a dirt bike.
hypothesis: The man is doing a trick on a bike.
explanation_1: Jumping off of a hill in a bike implies doing a trick on a bike.
explanation_2: If a man is jumping off a hill on a dirt bike, it follows he is doing a trick on a bike.
explanation_3: Jumping off a hill on dirt bike is a trick.
premise_logic: exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & in(x1,x2) & of(e1,x4) & on(x4,x5) & n_bike(x5) & of(x5,x6) & n_dirt(x6) & n_hill(x4) & r_off(e1) & Actor(e1,x3) & v_jump(e1) & (x2 = x3) & n_helmet(x2) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
hypothesis_logic: exists e1 x1 x2 x3.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_bike(x3) & n_trick(x2))