A man stands on top of a brick structure as another man looks on.
On top of a pile of bricks a man is balancing
A brick structure can be considered a pile of bricks.
exists e2 e1 x1 x2 x3 x4 x5 x6 x7.(on(e2,x7) & n_thing(x7) & Actor(e2,x1) & v_look(e2) & on(e1,x4) & of(x4,x5) & n_structure(x5) & of(x5,x6) & n_brick(x6) & n_top(x4) & as(e1,x3) & n_man(x3) & -(x3 = x1) & n_man(x1) & n_man(x1) & Actor(e1,x2) & v_stand(e1) & (x1 = x2))
exists e1 x1 x2 x3 x4.(on(e1,x2) & of(x2,x3) & of(x3,x4) & n_brick(x4) & n_pile(x3) & n_top(x2) & Actor(e1,x1) & v_balance(e1) & n_man(x1))