A girl in a skirt hugging a boy.
couple on road
A girl hugging a boy does not mean they are a couple.
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_hug(e1) & n_boy(x4) & (x2 = x3) & n_skirt(x2) & n_girl(x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_road(x2) & n_couple(x1))