Boy swinging on a swing set.
Boy swinging on a swing set with a slide.
Not all boy swinging on a swing set with a slide.
exists e1 x1 x2 x3.(ne_nam_boy(x1) & on(e1,x2) & n_set(x2) & of(x2,x3) & n_swing(x3) & Actor(e1,x1) & v_swing(e1))
exists e2 e1 x1 x2 x3 x4.(ne_nam_boy(x1) & on(e1,x2) & with(e2,x4) & n_slide(x4) & Theme(e2,x3) & v_set(e2) & (x2 = x3) & n_swing(x2) & Actor(e1,x1) & v_swing(e1))