A young boy balances on top of a rock on a sunny day near a lake.
A boy is standing on rocks by the lake.
Standing on rocks is how one balances on top of them.
exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & on(x1,x3) & of(x3,x4) & on(x4,x5) & near(x5,x6) & n_lake(x6) & n_day(x5) & a_sunny(s2) & Theme(s2,x5) & n_rock(x4) & n_top(x3) & n_balance(x1) & of(x1,x2) & n_boy(x2) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(n_lake(x3) & by(e1,x3) & on(e1,x2) & n_rock(x2) & Actor(e1,x1) & v_stand(e1) & n_boy(x1))