A man sitting on a porch selling red goods.
The man is rich
A man selling red goods is not necessarily rich.
exists e1 e2 s1 x1 x2 x3 x4.(a_topic(x1) & for(e1,e2) & Theme(e2,x4) & Actor(e2,x2) & v_sell(e2) & n_goods(x4) & a_red(s1) & Theme(s1,x4) & on(e1,x3) & n_porch(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_man(x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_rich(s1))