Children are playing a sport in a field near a lake.
The children are running.
Not all children are running.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & near(x2,x4) & n_lake(x4) & in(x2,x3) & n_field(x3) & n_sport(x2) & n_child(x1))
exists e1 x1.(n_child(x1) & Actor(e1,x1) & v_run(e1))