A dog runs down a ramp past its trainer.
dog runs by its master
If a dog runs past its human, it has run by the human.
exists e1 s1 x1 x2 x3.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & past(x2,x3) & n_trainer(x3) & of(x3,x1) & n_thing(x1) & n_ramp(x2) & n_dog(x1))
exists x1 x2 x3.(a_topic(x1) & by(x1,x3) & n_master(x3) & of(x3,x1) & n_thing(x1) & n_run(x1) & of(x1,x2) & n_dog(x2))