A man in a white shirt hammers one piece of wood while a boy in a black, white and orange hat looks at another piece of wood.
Some wood is visible in the frame.
If two people are hammering pieces of wood, then there is wood that can be seen.
(x)
exists s1 x1 x2.(n_frame(x2) & in(s1,x2) & Theme(s1,x1) & a_visible(s1) & n_wood(x1))