A motocross lets go of his bike in midair.
A motocross tries a trick at the X games.
The motocross doesn't necessarily have to be at the X games.
exists e1 p1 x1 x2.(exists e2 x3.(of(e2,x2) & in(x2,x3) & n_midair(x3) & Actor(e2,x1) & v_go(e2)) & n_bike(x2) & of(x2,x1) & n_male(x1) & Topic(e1,p1) & Actor(e1,x1) & v_let(e1) & n_motocross(x1))
exists e1 x1 x2 x3 x4.(n_game(x3) & (x3 = x4) & ne_org_x(x4) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_try(e1) & n_trick(x2) & n_motocross(x1))