Two teenage girls, one is smiling.
Two boys are playing catch.
The people can't be boys and girls, only one.
exists e1 s1 x1 x2.(rel(e1,x2) & n_girl(x2) & a_teenage(s1) & Theme(s1,x2) & card_eq_2(x2) & Actor(e1,x1) & v_smile(e1) & n_thing(x1) & card_eq_1(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_catch(x2) & n_boy(x1) & card_eq_2(x1))