A man sits on some steps at a flee market.
The man is sitting on the third step
The sitting man may not be sitting on the third step.
exists e1 x1 x2 x3 x4.(at(e1,x3) & n_market(x3) & of(x3,x4) & n_flee(x4) & on(e1,x2) & n_step(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1))
exists e1 s1 x1 x2.(n_step(x2) & a_third(s1) & Theme(s1,x2) & n_man(x1) & on(e1,x2) & Actor(e1,x1) & v_sit(e1))