A group of friends posing for a photo.
There is one person posing for a photo.
There are either a group of friends or one person.
exists e1 x1 x2 x3 x4.(a_topic(x1) & for(e1,x4) & n_photo(x4) & Actor(e1,x3) & v_pose(e1) & (x1 = x3) & of(x1,x2) & n_friend(x2) & n_group(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & for(e1,x4) & n_photo(x4) & Actor(e1,x3) & v_pose(e1) & (x2 = x3) & n_person(x2) & card_eq_1(x2))