Yes, I believe Roger was quite influenced by George Orwell (Arthur Blair)'s incredible piece of work known as Animal Farm. There are quite a few connections such as with pigs and dogs being the leader-like people and the sheep being weak and unsuspecting of anything wrong with the higher-ups. Animal Farm is probably my second favorite book, after 1984 by the same author. Strange to note that Radiohead's OK Computer, an incredible album seems to have great influence by 1984. It seems that many a musicians are influenced by George Orwell (Arthur Blair). Or maybe everyone who reads his books are greatly influenced by it. I recommend them both to everyone who is literate.