Children play on a slide in a lake.
Children entertain themselves outdoors.
Playing on a slide in a lake can only be done outdoors.
exists e1 x1 x2 x3.(on(e1,x2) & in(x2,x3) & n_lake(x3) & n_slide(x2) & Actor(e1,x1) & v_play(e1) & n_child(x1))
exists e1 x1 x2 x3.(n_group(x3) & Recipient(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_entertain(e1) & n_outdoors(x2) & n_child(x1))