An officer stands next to cars parked on a street.
the cop is by the cars to give tickets
The officer could be standing next to the cars for some other purpose than writing tickets.
exists e2 e1 x1 x2 x3 x4.(to(e1,x2) & on(e2,x4) & n_street(x4) & Theme(e2,x3) & v_park(e2) & (x2 = x3) & n_car(x2) & r_next(e1) & Actor(e1,x1) & v_stand(e1) & n_officer(x1))
exists p1 p2 x1 x2.(n_car(x2) & n_cop(x1) & Topic(p1,p2) & exists e1 x3.(Theme(e1,x3) & Actor(e1,x1) & v_give(e1) & n_ticket(x3)) & by(x1,x2))