The dog is sitting on the side of the hill.
An animal is on the hill.
the animal is a dog
exists e1 x1 x2 x3.(n_hill(x3) & n_side(x2) & n_dog(x1) & on(e1,x2) & of(x2,x3) & Actor(e1,x1) & v_sit(e1))
exists p1 x1 x2.(n_hill(x2) & on(x1,x2) & n_animal(x1))