A small wedding picture near a river.
There was a wedding in a church.
One refer to a wedding near a river, the other a wedding in a church.
exists s1 x1 x2 x3.(a_topic(x1) & near(x1,x3) & n_river(x3) & n_picture(x1) & of(x1,x2) & n_wedding(x2) & a_small(s1) & Theme(s1,x1))
exists p1 x1 x2.(in(p1,x2) & n_church(x2) & exists x3.((x1 = x3) & n_wedding(x3)))