Small boy carries a soccer ball on a field.
balls are flat
Little can happen during a game to cause a ball to go flat. If the boy carries a soccer ball on a field it likely isn't flat.
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_carry(e1) & on(x2,x4) & n_field(x4) & n_ball(x2) & of(x2,x3) & n_soccer(x3) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists s1 x1.(Theme(s1,x1) & a_flat(s1) & n_ball(x1))