premise: A dirt biker leaps through the air.
hypothesis: The biker is performing tricks.
explanation_1: Just because a dirt biker jumps through the air does not mean that he is performing tricks.
premise_logic: exists e1 x1 x2 x3.(n_air(x3) & through(e1,x3) & Actor(e1,x1) & v_leap(e1) & n_biker(x1) & of(x1,x2) & n_dirt(x2))
hypothesis_logic: exists e1 x1 x2.(n_biker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_trick(x2))
premise_sim: exists e1 x1 x2 x3.(v_leap(e1) & through(e1,x3) & of(x1,x2) & n_dirt(x2) & n_biker(x1) & n_air(x3) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2.(v_perform(e1) & n_trick(x2) & n_biker(x1) & Theme(e1,x2) & Actor(e1,x1))