A group of men are sitting down on the ground together.
The men are friends
Group of men sitting together does not imply they are friends.
exists e1 s1 s2 x1 x2 x3.(n_ground(x3) & a_together(s2) & Manner(e1,s2) & on(e1,x3) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
exists p1 x1.(n_man(x1) & exists x2.((x1 = x2) & n_friend(x2)))