Two young boys run on the beach with ducks behind them in the pond.
Boys are running.
Not all boys are young.
exists e1 s1 x1 x2 x3 x4.(n_pond(x4) & n_thing(x2) & n_beach(x2) & in(e1,x4) & on(e1,x2) & with(x2,x3) & behind(x3,x2) & n_duck(x3) & Actor(e1,x1) & v_run(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_boy(x1))