digraph Syzygy {
  KBNNvKR -> KBNNvK;
  KBNNvKR -> KNNvKR;
  KBNNvKR -> KBNvKR;
  KBNvKR -> KBNvK;
  KBNvKR -> KRvKN;
  KBNvKR -> KRvKB;
  KRvKB -> KBvK;
  KRvKB -> KRvK;
  KRvKN -> KNvK;
  KRvKN -> KRvK;
  KBNvK -> KNvK;
  KBNvK -> KBvK;
  KNNvKR -> KNNvK;
  KNNvKR -> KRvKN;
  KNNvK -> KNvK;
  KBNNvK -> KNNvK;
  KBNNvK -> KBNvK;
}