A dog with a ball in its mouth sitting outside.
The dog is sitting on a grassy hill outside.
The dog may not be on a grassy hill, it can be anywhere outside.
exists e1 p1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & in(x2,x3) & exists s1.(Theme(s1,x4) & a_outside(s1)) & Topic(e1,p1) & Actor(e1,x4) & v_sit(e1) & (x3 = x4) & n_mouth(x3) & of(x3,x1) & n_thing(x1) & n_ball(x2) & n_dog(x1))
exists e1 s1 x1 x2 x3.(n_dog(x1) & on(e1,x2) & n_outside(x2) & of(x2,x3) & n_hill(x3) & a_grassy(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1))