digraph Syzygy {
  KBBNvKB -> KBNvKB;
  KBBNvKB -> KBBNvK;
  KBBNvKB -> KBBvKB;
  KBBvKB -> KBvKB;
  KBBvKB -> KBBvK;
  KBBvK -> KBvK;
  KBvKB -> KBvK;
  KBBNvK -> KBNvK;
  KBBNvK -> KBBvK;
  KBNvK -> KNvK;
  KBNvK -> KBvK;
  KBNvKB -> KBvKN;
  KBNvKB -> KBNvK;
  KBNvKB -> KBvKB;
  KBvKN -> KNvK;
  KBvKN -> KBvK;
}