Children playing on the beach.
The beach was packed with youngsters
The simple fact that there are children playing on the beach does not necessarily imply the beach is packed.
exists e1 x1 x2 x3.(n_beach(x3) & a_topic(x1) & on(e1,x3) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_child(x1))
exists e1 x1 x2.(n_beach(x1) & with(e1,x2) & n_youngster(x2) & Theme(e1,x1) & v_pack(e1))