a woman in black dances with someone.
A woman dances with a man.
Just because a woman in black dances with someone doesn't imply dances with a man.
exists s1 x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_person(x3) & in(x1,x2) & n_dance(x2) & a_black(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 x1 x2.(with(e1,x2) & n_man(x2) & Actor(e1,x1) & v_dance(e1) & n_woman(x1))