two men and two women sitting on steps outdoors.
The two couples are talking.
The people are not necessarily couples, and they are not necessarily talking.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & on(e1,x4) & Time(x4,x5) & n_outdoors(x5) & n_step(x4) & Actor(e1,x3) & v_sit(e1) & (s1 = x3) & n_woman(x2) & card_eq_2(x2) & n_man(x1) & subset_of(x2,s1) & subset_of(x1,s1) & card_eq_2(s1))
exists e1 x1.(n_couple(x1) & card_eq_2(x1) & Actor(e1,x1) & v_talk(e1))