{
  "answer": {
    "aa": [
      15,
      6
    ],
    "bb": [
      [
        0,
        0
      ],
      [
        4,
        3
      ]
    ],
    "cc": 21,
    "dd": 2
  },
  "evidence": [
    15,
    52,
    94,
    138,
    169,
    226,
    274,
    298
  ],
  "schema_version": 1,
  "task": "program-execution-tracing"
}