A individual doing a handstand on a corner.
A person does a gymnastic feat.
A handstand is doing a gymnastic feat.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_do(e1) & on(x3,x4) & n_corner(x4) & n_handstand(x3) & (x1 = x2) & n_individual(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_feat(x2) & a_gymnastic(s1) & Theme(s1,x2) & n_person(x1))