Independent practice · Evidence review

Mark an unsupported satisfaction claim

Your task

Return claim (string), verdict (string), measured (boolean), source_ids (array).
Use the fixed source IDs. Array order follows the contract.
Do not invent unsupported values. Missing evidence must remain unknown.

Target: 70/100. Suggested active time: 10 minutes. You can keep working after that.

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Use verdict unsupported and measured false.

View the scoring standard

Accuracy checks the values. Coverage checks the requested output. Time is recorded separately and never changes your score.

claim: 25 points

verdict: 25 points

measured: 25 points

source_ids: 25 points

This score checks fixed evidence fields and exact types. It does not assess the quality of arbitrary writing.

Input materials

{
  "sources": [
    {
      "id": "S1",
      "title": "Pilot brief",
      "text": "The fictional Northstar pilot starts 2026-11-02. It covers 12 support agents. The pilot lasts 14 calendar days. Budget is 2400 USD."
    },
    {
      "id": "S2",
      "title": "Review policy",
      "text": "Morgan owns the review. No customer personal data may enter the pilot. No automation may send customer replies without human approval."
    },
    {
      "id": "S3",
      "title": "Results memo",
      "text": "The test processed 80 synthetic tickets. 72 had the correct category. Median handling time was 6 minutes. Customer satisfaction was not measured."
    }
  ],
  "brief": "Return claim (string), verdict (string), measured (boolean), source_ids (array).",
  "flawed_output": "Customer satisfaction improved significantly."
}

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JSON answer

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{
  "claim": "Customer satisfaction improved",
  "verdict": "unsupported",
  "measured": false,
  "source_ids": [
    "S3"
  ]
}

The memo explicitly says satisfaction was not measured. Unknown evidence is not a positive result.