The man at the street corner is selling poems.
The man is selling romantic poems.
just because the man is selling poems doesn't mean he is selling romantic poems
exists e1 x1 x2 x3 x4.(n_corner(x2) & of(x2,x3) & n_street(x3) & n_man(x1) & Theme(e1,x4) & Actor(e1,x1) & v_sell(e1) & n_poem(x4) & at(x1,x2))
exists e1 s1 x1 x2.(n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_poem(x2) & a_romantic(s1) & Theme(s1,x2))