A group of walking men.
A group of men walking to work.
the men are not necessarily going to work.
exists e1 x1 x2.(a_topic(x1) & of(x1,x2) & n_man(x2) & Actor(e1,x2) & v_walk(e1) & n_group(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & to(e1,x4) & n_work(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_man(x2) & n_group(x1))