Two workers are cleaning a window with bystanders and a dog in the background.
Birds left droppings on the windows requiring cleaning.
Workers are not necessarily cleaning birds left droppings on the windows.
exists e1 x1 x2 x3 x4 x5 x6.(n_background(x6) & Theme(e1,x2) & Actor(e1,x1) & v_clean(e1) & with(x2,x3) & subset_of(x5,x3) & in(x5,x6) & n_dog(x5) & subset_of(x4,x3) & n_bystander(x4) & n_window(x2) & n_worker(x1) & card_eq_2(x1))
exists e1 e2 x1 x2 x3 x4 x5.(n_window(x3) & on(e1,x3) & Theme(e2,x5) & Actor(e2,x4) & v_require(e2) & n_cleaning(x5) & (x3 = x4) & Theme(e1,x2) & Actor(e1,x1) & v_leave(e1) & n_droppings(x2) & n_bird(x1))