A child is playing ice hockey
The children are skating.
Ice hockey is a one type of skating.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_hockey(x2) & of(x2,x3) & n_ice(x3) & n_child(x1))
exists e1 x1.(n_child(x1) & Actor(e1,x1) & v_skate(e1))