A caravan of food trucks parked along the street.
The cars are racing along the highway.
Trucks are not cars.  Parked vehicles can not be racing along the highway.
exists e1 x1 x2 x3 x4.(n_street(x4) & along(e1,x4) & Theme(e1,x1) & v_park(e1) & of(x1,x2) & n_truck(x2) & of(x2,x3) & n_food(x3) & n_caravan(x1))
exists e1 x1 x2.(n_highway(x2) & n_car(x1) & along(e1,x2) & Actor(e1,x1) & v_race(e1))