Research/Terra/ 577156
Task evidence / qualitative-control

Compare the agricultural value added between Brazilian states with and without railway access

PassQualitative controlUnpublished draft
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The question

577156
Compare the agricultural value added between Brazilian states with and without railway access
Exact submitted task and declared adaptations
Compare the agricultural value added between Brazilian states with and without railway access

Task conventions: This is a closed-catalog task. The complete original GeoBenchX source inventory is listed below; it describes available source types, not actual measurements. Do not supplement it with live data or claim numerical evidence from general knowledge. General knowledge may be used for definitions and explanation. Answer the original question as far as this information environment supports, accurately distinguishing observations, inference and uncertainty. This source-availability/control cohort supplies catalog metadata rather than the observation files and is reported separately from computational tasks.
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- DATA_CATALOG: Electric power consumption (kWh per capita)
- DATA_CATALOG: Annual freshwater withdrawals, total (billion cubic meters)
- DATA_CATALOG: Annual freshwater withdrawals, total (% of internal resources)
- DATA_CATALOG: Agriculture, value added (% of GDP)
- DATA_CATALOG: GDP per capita (current US$)
- DATA_CATALOG: Labor force, total
- DATA_CATALOG: Net migration
- DATA_CATALOG: Fertility rate, births per woman
- DATA_CATALOG: Population, total
- DATA_CATALOG: Rural population, total
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- DATA_CATALOG: Rail lines (total route-km)
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- GEO_CATALOG: Rivers in South America
- GEO_CATALOG: Seaports of Latin America
- GEO_CATALOG: Railways in Brazil
- GEO_CATALOG: Mineral extraction facilities in Africa
- GEO_CATALOG: Power stations in Africa
- GEO_CATALOG: Railways in Africa
- GEO_CATALOG: Municipalities of Brazil
- GEO_CATALOG: Regions of Peru
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- RASTER_CATALOG: Accumulated snow cover season 2023-2024, USA, inches
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- RASTER_CATALOG: Peru, Bolivia, Argentina, Chile flood, February 2018
- RASTER_CATALOG: Peru population, 2018, 1 km resolution
- RASTER_CATALOG: Brazil population, 2018, 1 km resolution
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Give a concise ordinary-language answer. No artificial count, result artifact, workflow or map is required when the answer does not warrant one. Do not invent observations or claim an analysis was run.

Supplied immutable inputs:
[]

Outcome & verification

Operator-reviewed frozen qualitative criteria satisfied; not a numerical GIS result.

Duration
2m 3s
Recorded Blue tool calls
2
Total tokens
91,817
Model cost
Not recorded
Application revision
d50497ea9084f29c91b05406688f87035df98d8a
Release
terra-geobenchx-v1

Recorded final answer

**Delivered:** a source-support assessment. **Unanswered:** the actual state-by-state comparison. From the supplied inventory alone, I **cannot support** a comparison of agricultural value added between Brazilian states with and without railway access. - **Railway access:** partly supportable in principle. **“Railways in Brazil”** plus **“Municipalities of Brazil”** suggest rail presence might be assigned to states, but that join is **not yet confirmed** from metadata alone. - **Agricultural value added:** not supportable at Brazil state level from what is listed. The inventory names **“Agriculture, value added (% of GDP)”**, but it is **not described as a Brazilian state-level dataset**. So the safest conclusion is: **this environment does not support the requested comparison.** **Next action:** add or confirm a **Brazil state-level agriculture value-added** source, and verify a **state boundary or state-ID layer** for tagging states as rail-access / no-rail-access. Sources cited from the supplied inventory: **Agriculture, value added (% of GDP)**; **Railways in Brazil**; **Municipalities of Brazil**; **Rail lines (total route-km)**. ### Limitations - The supplied inventory describes source types rather than observation files or verified measurements. - A Brazilian state-level agriculture value-added source is not confirmed in the supplied inventory. - Closed-catalog inventory lists source types only, and the agriculture source is not confirmed at Brazilian state level. - **Agricultural value added:** The inventory does not clearly provide Brazilian state-level values. - **Railway access:** The needed state assignment is not confirmed from the inventory alone.

Independent checks

These checks are separate from the agent's own assessment. A successful job or an assertion of success is not enough to pass.

Expected count
Not a count-based check
Reported count
Not recorded
Computation verified
Not applicable / unverified
Answer fulfilled
Yes
Full grading and rubric record
{
  "expectedCount": null,
  "actualCount": null,
  "expectedMetrics": null,
  "actualMetrics": null,
  "computationCorrect": null,
  "answerFulfilled": true,
  "adjudication": {
    "reviewedAt": "2026-10-07T07:30:31.866057+00:00",
    "reviewer": "Codex evaluation operator (AI-assisted); not blinded or external",
    "rubricFingerprint": "7a6c5bec45e556704f0fbd2d69149cf86ae2157d93a6dd455a68e2ceec05e7cc",
    "finalEventId": "[resource id withheld]",
    "finalTextHash": "382620727124d79a14569992b218fe0bd60864d6362e3e92acd5168dbcdfc4f9",
    "snapshotSha256AtReview": "3c0c12824edb9e615903c935ebe1bf198048edb866a767438c92fbd9451b2eb3",
    "evidenceReviewed": [
      "Complete accepted final answer",
      "Recorded tool names, statuses and outputs relevant to claimed work",
      "Recorded workflow/job/artifact presence",
      "Frozen source inventory, task environment and case-specific rubric"
    ],
    "criteria": {
      "specific_obstacle": {
        "satisfied": true,
        "explanation": "Identifies that the listed agricultural GDP share is not Brazilian state-level agricultural value added."
      },
      "no_false_proxy": {
        "satisfied": true,
        "explanation": "Does not compare states using a national agriculture value; state assignment from rail/municipality layers is explicitly unconfirmed."
      },
      "scope_honesty": {
        "satisfied": true,
        "explanation": "Acknowledges relevant rail/geography listings and limits the conclusion to unverified metadata rather than declaring the analysis universally impossible."
      },
      "no_fabrication": {
        "satisfied": true,
        "explanation": "Labels the delivered work a source-support assessment, not a state comparison; no numerical comparison, jobs or artifacts."
      },
      "useful_next_step": {
        "satisfied": true,
        "explanation": "Requests state-level agriculture values and verified state boundaries or IDs for rail-access grouping."
      }
    },
    "cohort": "metadata-only qualitative control; distinct from computational correctness"
  },
  "qualification": "Operator-adjudicated, not blinded. Reported separately from exact computed/map results.",
  "reasons": []
}

Activity

Recorded actions

Recorded observable actions only, not private reasoning. Raw payloads, geometry, private links and credentials are omitted; full evidence is retained privately. Activity/workflow lists bounded at 500 entries.

  1. get_analysis

    Recorded tool call · completed

  2. update_analysis_brief

    Recorded tool call · completed