The white dog is on its back in the sand with paws in the air.
The white dog is in the sand sleeping.
The dog may be awake rather than sleeping.
exists p1 s1 x1 x2 x3 x5.(n_air(x5) & n_sand(x3) & n_back(x2) & of(x2,x1) & n_thing(x1) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & exists x4.(on(x1,x2) & with(x2,x4) & in(x4,x5) & n_paw(x4) & in(x2,x3)))
exists p1 s1 x1 x2 x3.(n_sleeping(x2) & of(x2,x3) & n_sand(x3) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & in(x1,x2))