A child swinging on a swing-set.
A child is playing on a swing
'A child swinging on a swing-set' is rephrasing of the Sentence 'A child is playing on a swing'.
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_swing-set(x3) & Actor(e1,x2) & v_swing(e1) & (x1 = x2) & n_child(x1))
exists e1 x1 x2.(on(e1,x2) & n_swing(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1))