A person taking a jump off a rock on a dirt bike.
A dirt biker performing a jump
A person taking a jump off a rock means they are performing a jump.
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.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_perform(e1) & n_jump(x4) & (x1 = x3) & n_biker(x1) & of(x1,x2) & n_dirt(x2))