Two guys pose with two women, everyone is wearing black and white.
The children play at a pool.
Two guys and two women cannot be playing at a pool if they are wearing black and white.
exists e1 x1 x2.(all x3.(n_person(x3) -> exists e2 p1.(exists s1 s2.(Theme(s2,x3) & a_white(s2) & Theme(s1,x3) & a_black(s1)) & Topic(e2,p1) & Actor(e2,x3) & v_wear(e2))) & with(e1,x2) & n_woman(x2) & card_eq_2(x2) & Actor(e1,x1) & v_pose(e1) & n_guy(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_child(x1) & at(e1,x2) & n_pool(x2) & Actor(e1,x1) & v_play(e1))