Two guys pose with two women, everyone is wearing black and white.
A group of people pose together.
The group of people that pose together are the people 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 p1 x1 x2.(exists s1.(Theme(s1,x1) & a_together(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_pose(e1) & of(x1,x2) & n_people(x2) & n_group(x1))