A police officer on a motorcycle is behind a four door sedan on a road with billboards in the distance.
A police officer on a motorcycle stopping a four door sedan on a road.
Just because a police officer on a motorcycle is behind a four door sedan, doesn't necessarily mean the officer is stopping a four door sedan.
exists p1 x1 x2 x3 x8.(n_distance(x8) & exists x4 x5 x6 x7.(behind(x1,x4) & on(x4,x6) & with(x6,x7) & in(x7,x8) & n_billboard(x7) & n_road(x6) & n_sedan(x4) & of(x4,x5) & n_door(x5) & card_eq_4(x4)) & on(x1,x3) & n_motorcycle(x3) & n_officer(x1) & of(x1,x2) & n_police(x2))
exists e1 x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & on(x1,x3) & on(e1,x7) & n_road(x7) & Theme(e1,x5) & Actor(e1,x4) & v_stop(e1) & n_sedan(x5) & of(x5,x6) & n_door(x6) & card_eq_4(x5) & (x3 = x4) & n_motorcycle(x3) & n_officer(x1) & of(x1,x2) & n_police(x2))