A happy child enjoying the swings.
A child is being pushed by his mom on a swing.
Not all children enjoying the swings are being pushed by their mom
exists e1 s1 x1 x2 x3.(n_swing(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & (x1 = x2) & n_child(x1) & a_happy(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_swing(x3) & Actor(e1,x2) & n_mom(x2) & of(x2,x1) & n_male(x1) & Theme(e1,x1) & v_push(e1) & n_child(x1))