People ride in a cart being pulled by a donkey.
People are riding in cars.
People on a ride in a cart can not be riding in cars at the same time.
exists e1 e2 x1 x2 x3 x4.(in(e1,x2) & Actor(e2,x4) & n_donkey(x4) & Theme(e2,x3) & v_pull(e2) & (x2 = x3) & n_cart(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1))
exists e1 x1 x2.(in(e1,x2) & n_car(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1))