Two workers in orange vests are cleaning the windows outside while other look on.
The workers were taking a break.
Workers can't be cleaning the windows and taking a break at the same time.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_look(x6) & n_window(x4) & a_on(s2) & Manner(e1,s2) & while(e1,x5) & -(x5 = x6) & n_look(x5) & a_outside(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_clean(e1) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_worker(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_worker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_break(x2))