Kids sit on a ledge and talk.
The kids are all best friends.
All kids that talk are not all best friends.
exists e1 x1 x2 x3 x4.(on(e1,x2) & n_talk(x4) & n_ledge(x3) & subset_of(x4,x2) & subset_of(x3,x2) & Actor(e1,x1) & v_sit(e1) & n_kid(x1))
exists p1 x1.(n_kid(x1) & all x2 s1.((n_friend(x2) & r_most(s1) & a_good(s1) & Theme(s1,x2)) -> (x1 = x2)))