Street vendors sell baked goods.
The street vendors are selling cookies.
Cookies are not the only baked good, it's possible they were selling cakes or other things.
exists e2 e1 x1 x2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_sell(e2) & n_goods(x3) & Theme(e1,x3) & v_bake(e1) & n_vendor(x1) & (x1 = x2) & ne_per_street(x2))
exists e1 x1 x2 x3.(n_vendor(x1) & of(x1,x2) & n_street(x2) & Theme(e1,x3) & Actor(e1,x1) & v_sell(e1) & n_cookie(x3))