A couple admiring colorful artwork on a building.
The couple is standing next to the building.
A couple that is admiring artwork on a building is not necessarily standing next to that building.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_building(x4) & Theme(e1,x3) & Actor(e1,x2) & v_admire(e1) & n_artwork(x3) & a_colorful(s1) & Theme(s1,x3) & (x1 = x2) & n_couple(x1))
exists e1 x1 x2.(n_building(x2) & n_couple(x1) & to(e1,x2) & r_next(e1) & Actor(e1,x1) & v_stand(e1))