a young girl posing with another woman each smiling.
Two young boys throw a ball to one another.
The two groups of two people are not the same. One group is comprised of two females, a girl and a woman, and the other group is comprised of two young boys.
exists s1 x1 x4.(n_woman(x4) & a_topic(x1) & all x2.(n_smiling(x2) -> exists e1 x3 x5.(Time(e1,x2) & with(e1,x5) & n_woman(x5) & -(x5 = x4) & Actor(e1,x3) & v_pose(e1) & (x1 = x3))) & n_girl(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 s2 x1 x2 x3.(to(e1,x3) & n_thing(x3) & card_eq_1(x3) & a_another(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_ball(x2) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))