A biker is in midair doing a stunt.
A biker just hit a jump.
There are other bike stunts than a jump.
exists p1 x1.(exists e1 x2 x3 x4.(in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_do(e1) & n_stunt(x4) & (x2 = x3) & n_midair(x2)) & n_biker(x1))
exists e1 s1 x1 x2.(a_just(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_hit(e1) & n_jump(x2) & n_biker(x1))