This wall has a picture of a man on it.
There is a bare wall.
A wall can't have a picture and be a bare wall.
exists e1 x1 x2 x3.(n_thing(x1) & n_wall(x1) & on(e1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & of(x2,x3) & n_man(x3) & n_picture(x2))
exists p1 x1 s1 x2.((x1 = x2) & n_wall(x2) & a_bare(s1) & Theme(s1,x2))