The boy is doing a handstand on the pavement.
There is a boy on the pavement.
In order to do a handstand one has to be on the pavement.
exists e1 x1 x2 x3.(n_pavement(x3) & n_boy(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_handstand(x2))
exists p1 x1 x3.(n_pavement(x3) & exists x2.((x1 = x2) & on(x2,x3) & n_boy(x2)))