A person on a motorbike is jumping over a dirt ramp.
The motorbike is being ridden on a road.
They may not be riding on a road.
exists e1 s1 x1 x2 x3 x4.(a_over(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_jump(e1) & n_ramp(x3) & of(x3,x4) & n_dirt(x4) & on(x1,x2) & n_motorbike(x2) & n_person(x1))
exists e1 x1 x2.(n_motorbike(x1) & on(e1,x2) & n_road(x2) & Theme(e1,x1) & v_ride(e1))