A woman with a bucket standing beside a picket fence.
a woman races on a horse
One cannot be standing beside a picket fence and racing on a horse simultaneously.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & with(x1,x2) & beside(e1,x4) & n_fence(x4) & of(x4,x5) & n_picket(x5) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_bucket(x2) & n_woman(x1))
exists x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_horse(x3) & n_race(x1) & of(x1,x2) & n_woman(x2))