Several people are ordering food at a window.
People are ordering from a window of a restaurant.
The window isn't necessarily that of a restaurant.
exists e1 s1 x1 x2 x3.(at(e1,x3) & n_window(x3) & Theme(e1,x2) & Actor(e1,x1) & v_order(e1) & n_food(x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(from(e1,x2) & of(x2,x3) & n_restaurant(x3) & n_window(x2) & Actor(e1,x1) & v_order(e1) & n_people(x1))