A skateboarder jumps another skateboard.
The person is Tony Hawk.
The skateboarder could be anyone. The fact that he's Tony Hawk is new information.
exists e1 x1 x2 x3.(n_skateboard(x2) & Theme(e1,x3) & Actor(e1,x1) & v_jump(e1) & n_skateboard(x3) & -(x3 = x2) & n_skateboarder(x1))
exists p1 x1 x2 x3.(ne_per_hawk(x2) & (x2 = x3) & ne_per_tony(x3) & n_person(x1) & (x1 = x2))