A group of men are talking while other people look on.
There are men speaking while others watch
Talking must involve speaking. To look on is to watch.
exists e1 p1 x1 x2 x4.(n_people(x4) & exists e2 p2 x3.(exists s1.(Theme(s1,x3) & a_on(s1)) & Topic(e2,p2) & Actor(e2,x3) & v_look(e2) & -(x3 = x4) & n_people(x3)) & while(e1,p1) & Actor(e1,x1) & v_talk(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
exists p1 x1 e1 p2 x2 x3.((x1 = x2) & exists e2 x4.(Actor(e2,x4) & v_watch(e2) & -(x4 = x2) & n_person(x4)) & n_person(x2) & while(e1,p2) & Actor(e1,x3) & v_speak(e1) & (x2 = x3) & n_man(x2))