a man in black hugs a woman in black.
A husband and wife wearing black hug each other.
Just because a man in black hugs a woman in black does not mean they are husband and wife.
exists x1.(all x2.(n_woman(x2) -> exists s1 s2 x3 x4.(a_topic(x1) & in(x1,x3) & Theme(s2,x4) & a_black(s2) & (x3 = x4) & for(x3,x2) & n_hug(x3) & a_black(s1) & Theme(s1,x3))) & n_man(x1))
exists s1 x1 x2.(a_topic(s1) & subset_of(x2,s1) & all x3.(n_other(x3) -> exists e1 s2 x4 x5.(Time(e1,x3) & Theme(e1,x5) & Actor(e1,x4) & v_wear(e1) & n_hug(x5) & a_black(s2) & Theme(s2,x5) & (x2 = x4))) & n_wife(x2) & subset_of(x1,s1) & n_husband(x1))