BMXer in the air with motion blur on the forest background.
The BMXer is racing.
Just because the BMXer is in the air doesn't mean they are racing.
exists s1 x1 x2 x3 x4 x5.(n_background(x4) & of(x4,x5) & n_forest(x5) & n_air(x1) & ne_org_bmxer(s1) & a_topic(s1) & in(s1,x1) & on(x1,x4) & with(x1,x2) & n_blur(x2) & of(x2,x3) & n_motion(x3))
exists e1 x1.(ne_org_bmxer(x1) & Actor(e1,x1) & v_race(e1))