{
  "task": {
    "id": "case_24",
    "name": "first_occurrence",
    "summary": "Copies each token in the sequence to the output unchanged.",
    "examples": [
      {
        "input": [
          "BOS",
          "b",
          "b",
          "a",
          "a",
          "b",
          "b",
          "a",
          "a",
          "a"
        ],
        "output": [
          "BOS",
          "b",
          "b",
          "a",
          "a",
          "b",
          "b",
          "a",
          "a",
          "a"
        ]
      },
      {
        "input": [
          "BOS",
          "c",
          "c",
          "a",
          "c",
          "a",
          "c",
          "c",
          "a",
          "a"
        ],
        "output": [
          "BOS",
          "c",
          "c",
          "a",
          "c",
          "a",
          "c",
          "c",
          "a",
          "a"
        ]
      },
      {
        "input": [
          "BOS",
          "c",
          "a",
          "c",
          "c",
          "a",
          "a",
          "c",
          "b",
          "c"
        ],
        "output": [
          "BOS",
          "c",
          "a",
          "c",
          "c",
          "a",
          "a",
          "c",
          "b",
          "c"
        ]
      },
      {
        "input": [
          "BOS",
          "c",
          "c",
          "c",
          "b",
          "c",
          "b",
          "b",
          "c",
          "b"
        ],
        "output": [
          "BOS",
          "c",
          "c",
          "c",
          "b",
          "c",
          "b",
          "b",
          "c",
          "b"
        ]
      },
      {
        "input": [
          "BOS",
          "c",
          "c",
          "c",
          "a",
          "c",
          "b",
          "a",
          "b",
          "b"
        ],
        "output": [
          "BOS",
          "c",
          "c",
          "c",
          "a",
          "c",
          "b",
          "a",
          "b",
          "b"
        ]
      }
    ],
    "is_categorical": true
  },
  "program": "first_occurrence = rasp.Aggregate(rasp.Select(rasp.indices, rasp.indices, rasp.Comparison.EQ), sop, default=None).named(\"first_occurrence\"); return first_occurrence",
  "components": [
    {
      "id": "L0H0_ATTN",
      "hook": "blocks.0.attn.hook_result[0]",
      "role": {
        "tag": "ROUTER",
        "note": "Routes each position's token value to itself via an identity attention pattern. Each query position attends exclusively to its own key position, acting as a pass-through."
      },
      "rasp_vars": [
        "first_occurrence"
      ],
      "labels": [
        "first_occurrence_1"
      ]
    }
  ]
}