A person taking a jump off a rock on a dirt bike.
A person is doing a stunt on a dirt bike
A person taking a jump means they are doing a stunt.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_take(e1) & on(x3,x5) & n_bike(x5) & of(x5,x6) & n_dirt(x6) & off(x3,x4) & n_rock(x4) & n_jump(x3) & (x1 = x2) & n_person(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_bike(x3) & of(x3,x4) & n_dirt(x4) & n_stunt(x2) & n_person(x1))