premise: A man does a jump trick on a bike.
hypothesis: The boy fell off his bike.
explanation_1: You cannot fall and do a trick at the same time.
explanation_2: It can be either a man or a boy
explanation_3: The person on the bike must be either a boy or a man depending on his age.
premise_logic: exists e1 x1 x2 x3 x4.(on(e1,x4) & n_bike(x4) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & of(x2,x3) & n_jump(x3) & n_man(x1))
hypothesis_logic: exists e1 s1 x1 x2.(n_bike(x2) & of(x2,x1) & n_male(x1) & n_boy(x1) & a_off(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_fall(e1))