A person riding a yellow ATV over tall grass.
A rider rides their ATV to a dirt track.
The fact that person riding a ATV doesn't imply that he rides to a dirt track.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & over(e1,x4) & n_grass(x4) & a_tall(s2) & Theme(s2,x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_atv(x3) & a_yellow(s1) & Theme(s1,x3) & (x1 = x2) & n_person(x1))
exists e1 x1 x2 x3 x4.(to(e1,x3) & n_track(x3) & of(x3,x4) & n_dirt(x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & ne_nam_atv(x2) & of(x2,x1) & n_thing(x1) & n_rider(x1))