A policeman stands outside the door to a shop.
the policeman is driving.
The police man cannot be driving and stand outside at the same time.
exists e1 x1 x2 x3.(n_door(x2) & outside(e1,x2) & to(x2,x3) & n_shop(x3) & Actor(e1,x1) & v_stand(e1) & n_policeman(x1))
exists e1 x1.(n_policeman(x1) & Actor(e1,x1) & v_drive(e1))