A group of men standing on the street.
Some men are waiting to catch the bus
Not all group of men standing on the street are waiting to catch the bus.
exists e1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & of(x1,x2) & on(e1,x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_man(x2) & n_group(x1))
exists e1 p1 x1 x2.(n_bus(x2) & Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_catch(e2)) & n_man(x1))