A bicycler does a trick in the air and his shadow is captured on the ceiling.
A bicycler does a trick, but no shadow is cast.
shadow and no shadow are opposite
exists e2 e1 x1 x2 x3 x4 x5.(n_ceiling(x5) & n_shadow(x4) & of(x4,x3) & n_male(x3) & n_air(x3) & on(e2,x5) & Theme(e2,x4) & v_capture(e2) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_bicycler(x1))
exists e1 x1 x2.(-exists p1 x3.(exists x4.((x3 = x4) & n_cast(x4)) & n_shadow(x3)) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_trick(x2) & n_bicycler(x1))