The windows of the building are barred.
The jail has barred windows
Private buildings can have barred windows; it may not be a jail.
exists e1 x1 x2.(n_building(x2) & n_window(x1) & Theme(e1,x1) & v_bar(e1) & of(x1,x2))
exists e1 x1 x2.(n_jail(x1) & Theme(e1,x2) & Actor(e1,x1) & v_bar(e1) & n_window(x2))