A man is talking in the foreground while a woman is talking in the background.
People are chatting with each other.
Just because the two people are talking does not mean the are talking with each other
exists e1 p1 x1 x2 x4.(n_background(x4) & n_foreground(x2) & exists e2 x3.(in(e2,x4) & Actor(e2,x3) & v_talk(e2) & n_woman(x3)) & while(e1,p1) & in(e1,x2) & Actor(e1,x1) & v_talk(e1) & n_man(x1))
exists e1 x1.(all x2.(n_other(x2) -> with(e1,x2)) & Actor(e1,x1) & v_chat(e1) & n_people(x1))