Man in black shirt hugging woman in white shirt, gray skirt.
The man and woman are a couple.
A man and a woman hugging doesn't make them a couple.
exists e1 s1 s2 s3 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & in(x2,x4) & rel(x4,x5) & n_skirt(x5) & a_gray(s3) & Theme(s3,x5) & n_shirt(x4) & a_white(s2) & Theme(s2,x4) & n_woman(x2) & Actor(e1,x2) & v_hug(e1) & of(x2,x3) & n_shirt(x3) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1 x2 x3.(n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1) & exists x4.((x1 = x4) & n_couple(x4)))