A group is looking at things for sale.
A group of people are looking at things that are for sale.
Group is group of people.
exists e1 x1 x2 x3.(at(e1,x2) & for(x2,x3) & n_sale(x3) & n_thing(x2) & Actor(e1,x1) & v_look(e1) & n_group(x1))
exists e1 p1 x1 x2 x3 x4.(at(e1,x3) & exists x5.(for(x4,x5) & n_sale(x5)) & (x3 = x4) & n_thing(x3) & Actor(e1,x1) & v_look(e1) & of(x1,x2) & n_people(x2) & n_group(x1))