Boy jumping steps with skateboard
The boys are riding skateboards.
Some boys who are riding skateboards one of whom jumps steps with his skateboard.
exists e1 x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_skateboard(x3) & n_step(x1) & Actor(e1,x1) & v_jump(e1) & (x1 = x2) & ne_nam_boy(x2))
exists e1 x1 x2.(n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_skateboard(x2))