a woman in black dances with someone.
A couple is enjoying a dance together.
The fact that a woman dances with someone doesn't imply couple and doesn't imply enjoying a dance together.
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 s1 x1 x2.(a_together(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_dance(x2) & n_couple(x1))