digraph Syzygy {
  KBBNvKN -> KBNvKN;
  KBBNvKN -> KBBvKN;
  KBBNvKN -> KBBNvK;
  KBBNvK -> KBNvK;
  KBBNvK -> KBBvK;
  KBBvK -> KBvK;
  KBNvK -> KNvK;
  KBNvK -> KBvK;
  KBBvKN -> KBvKN;
  KBBvKN -> KBBvK;
  KBvKN -> KNvK;
  KBvKN -> KBvK;
  KBNvKN -> KNvKN;
  KBNvKN -> KBvKN;
  KBNvKN -> KBNvK;
  KNvKN -> KNvK;
}