digraph Syzygy { KQQvKQN -> KQNvKQ; KQQvKQN -> KQQvKN; KQQvKQN -> KQQvKQ; KQQvKQ -> KQvKQ; KQQvKQ -> KQQvK; KQQvK -> KQvK; KQvKQ -> KQvK; KQQvKN -> KQvKN; KQQvKN -> KQQvK; KQvKN -> KNvK; KQvKN -> KQvK; KQNvKQ -> KQvKN; KQNvKQ -> KQNvK; KQNvKQ -> KQvKQ; KQNvK -> KNvK; KQNvK -> KQvK; }