A black dog lying on its back in green grass.
A dog is in some grass.
dog in green grass means dog is in some grass
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_grass(x4) & a_green(s2) & Theme(s2,x4) & on(e1,x3) & n_back(x3) & of(x3,x1) & n_thing(x1) & Actor(e1,x2) & v_lie(e1) & (x1 = x2) & n_dog(x1) & a_black(s1) & Theme(s1,x1))
exists p1 x1.(exists x2.(in(x1,x2) & n_grass(x2)) & n_dog(x1))