"[T]he owners of the two farms which adjoined Animal Farm were on permanently bad terms. One of them . . . Foxwood, was a large, neglected, old-fashioned farm . . . [i]ts owner, Mr. Pilkington, was an easy-going gentleman farmer . . . The other farm . . . Pinchfield, was smaller and better kept. Its owner was a Mr. Frederick, a tough, shrewd man . . . These two disliked each other so much that it was difficult for them to come to any agreement[.]"