A photographer is photographing a vine covered building.
The building is an historic landmark.
Not all vine covered buildings are a historical landmark.
exists e1 e2 x1 x2 x3.(Theme(e2,x2) & Actor(e2,x1) & v_photograph(e2) & n_building(x2) & Theme(e1,x2) & v_cover(e1) & of(x2,x3) & n_vine(x3) & n_photographer(x1))
exists p1 x1.(n_building(x1) & exists s1 x2.((x1 = x2) & n_landmark(x2) & a_historic(s1) & Theme(s1,x2)))