A boy on a scooter.
The boy is standing next to the scooter.
On is different than next to.
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_scooter(x2) & n_boy(x1))
exists e1 x1 x2.(n_scooter(x2) & n_boy(x1) & to(e1,x2) & r_next(e1) & Actor(e1,x1) & v_stand(e1))