A BMX rider airborne on his bike
A rider performs a stunt at a bike show.
Just because the rider is airborne does not mean that he is doing a stunt or that he is performing at a bike show.
exists x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_bike(x4) & of(x4,x1) & n_male(x1) & n_airborne(x1) & of(x1,x3) & n_rider(x3) & (x1 = x2) & ne_org_bmx(x2))
exists e1 x1 x2 x3 x4.(at(e1,x3) & n_show(x3) & of(x3,x4) & n_bike(x4) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1) & n_stunt(x2) & n_rider(x1))