Two workers are cleaning a window with bystanders and a dog in the background.
The windows required cleaning.
Cleaning a window implies required cleaning.
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 x1 x2.(n_window(x1) & Time(e1,x2) & n_cleaning(x2) & Theme(e1,x1) & v_require(e1))