{
  "source_sha256": "28d43c205a36a6762019614d86a3c9a4a9206d70df864296fb9be7a42530d287",
  "alphabet": "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
  "target": "ABCDEF",
  "smoothing": 1,
  "base": "each ordered pair of A..Z once, with BOS and EOS",
  "extras": {
    "base": "none",
    "repeat": "ABCDEF repeated 50 times",
    "all_orders": "every permutation of ABCDEF once",
    "alphabet": "AB, BC, ..., YZ each repeated 20 times"
  },
  "permutation": "all 720 orders; include ties and canonical order",
  "mixture": "fixed illustrative per-group rates, no fitted model",
  "environment": "three fixed tasks, four handwritten policies; in-memory SQLite",
  "compression": "ABAB; known length; binary iid probabilities, no EOS coding"
}