Four people are in a automobile.
The wagon is being pulled by a horse.
People cannot be in an automobile and a horse drawn wagon.
exists p1 x1.(exists x2.(in(x1,x2) & n_automobile(x2)) & n_people(x1) & card_eq_4(x1))
exists e1 x1 x2.(n_wagon(x1) & Actor(e1,x2) & n_horse(x2) & Theme(e1,x1) & v_pull(e1))