A dirt biker gets some air over a jump.
The dirt biker is walking after getting a broken ankle.
gets some air is contradictory to walking
exists e1 x1 x2 x3 x4.(over(e1,x4) & n_jump(x4) & Theme(e1,x3) & Actor(e1,x1) & v_get(e1) & n_air(x3) & n_biker(x1) & of(x1,x2) & n_dirt(x2))
exists e1 e2 s1 x1 x2 x3.(n_biker(x1) & of(x1,x2) & n_dirt(x2) & after(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_get(e2) & n_ankle(x3) & a_broken(s1) & Theme(s1,x3) & Actor(e1,x1) & v_walk(e1))