A group is looking at things for sale.
A group of people who are going to yard sales are looking around.
You can not infer they are going to yard sales.
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 e2 p1 x1 x2 x3 x4 x5.(exists s1.(Theme(s1,x1) & a_around(s1)) & Topic(e2,p1) & Actor(e2,x1) & v_look(e2) & of(x1,x2) & to(e1,x4) & n_sale(x4) & of(x4,x5) & n_yard(x5) & Actor(e1,x3) & v_go(e1) & (x2 = x3) & n_people(x2) & n_group(x1))