A soldier is sitting on top a jeep.
The soldier is standing on the desk.
sitting and standing are opposite.
exists e1 x1 x2 x3.(n_jeep(x3) & Time(e1,x3) & on(e1,x2) & n_top(x2) & Actor(e1,x1) & v_sit(e1) & n_soldier(x1))
exists e1 x1 x2.(n_desk(x2) & n_soldier(x1) & on(e1,x2) & Actor(e1,x1) & v_stand(e1))