A man in straw hat is looking at pictures on a table.
A man in a straw hat looks at family photos.
The man looking at pictures isn't necessarily looking at family photos and could be looking at pictures of other things.
exists e1 x1 x2 x3 x4 x5.(on(e1,x5) & n_table(x5) & at(e1,x4) & n_picture(x4) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_hat(x2) & of(x2,x3) & n_straw(x3) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(at(e1,x4) & n_photo(x4) & of(x4,x5) & n_family(x5) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & n_hat(x2) & of(x2,x3) & n_straw(x3) & n_man(x1))