{
  "task_id": "wateroffice_005",
  "domain": "WATER_OFFICE",
  "autonomy_type": "ordered table",
  "oracle_output_cardinality": 3,
  "instruction": "I am organizing historical daily-flow records for the Peace River reach from Dunvegan Bridge to Fifth Meridian and want to verify three things at once: the true furthest-downstream reusable station on the mainstem, the first failing station encountered after it, and the provisional terminal station that a station-level screen based only on year coverage and record type would mistakenly treat as the downstream winner. Screen only among Peace River mainstem stations between Dunvegan Bridge and Fifth Meridian. First, from the station list, identify provisional candidates that appear to cover both 1966 and 1967 and show a daily-flow record type. Then open each availability page and verify whether May through September in both 1966 and 1967 appears in the Flow table and is complete for every month. If both target years satisfy the complete daily-flow condition, write PASS in target_window_status. If a target year has only level records and no daily-flow records, write LEVEL_ONLY. If daily-flow records exist but any target month from May through September is incomplete, write FLOW_GAP. If the target year has neither daily-flow nor level records, write NO_TARGET_RECORD. Finally, output a three-row diagnostic table with columns rank|station_number|diagnosis_role|target_window_status|provisional_count|final_count. The rows must be FINAL_STATION, FIRST_BREAK_AFTER_FINAL, and PROVISIONAL_STATION in that order, and the last two columns must repeat the global provisional_count and final_count in every row.",
  "start_url": "https://wateroffice.ec.gc.ca/search/historical_e.html",
  "output_format": "Output a three-row diagnostic table with columns rank|station_number|diagnosis_role|target_window_status|provisional_count|final_count.",
  "oracle_answer": "1|07HA001|FINAL_STATION|PASS|5|2\n2|07HD001|FIRST_BREAK_AFTER_FINAL|FLOW_GAP|5|2\n3|07KA002|PROVISIONAL_STATION|FLOW_GAP|5|2",
  "metadata": {
    "State-Gated Retrieval": [
      "Screen only among Peace River mainstem stations between Dunvegan Bridge and Fifth Meridian.",
      "A genuinely reusable station must satisfy the availability-page rule that both 1966 and 1967 appear in the Flow table and that every month from May through September is complete.",
      "The final output must jointly report FINAL_STATION, FIRST_BREAK_AFTER_FINAL, and PROVISIONAL_STATION, while repeating provisional_count and final_count in every row."
    ],
    "dependency_type": "Data + Control",
    "intra_chain": true,
    "inter_chain": true,
    "data_dependency": [
      "the Peace River mainstem chain between Dunvegan Bridge and Fifth Meridian yields the initial station list and the downstream breakpoint positions that need revalidation",
      "each availability page yields whether 1966 and 1967 are present in the Flow or Level tables and whether May-September is complete",
      "final rows are produced only after the final station, the first downstream failure, and the provisional downstream winner are all fixed under the same availability-page validation rule"
    ],
    "control_dependency": [
      "station-level target-year Flow evidence must be validated by explicit May-September completeness checks on the availability page",
      "the final downstream reusable station and the first downstream failure must be determined under the same validation rule rather than from the initial station screen",
      "the provisional downstream winner is kept in the output only for reference after its FLOW_GAP status is confirmed on the availability page"
    ],
    "freeze": {
      "historical_window": "Peace River mainstem stations between Dunvegan Bridge and Fifth Meridian, evaluated within the fixed historical 1966 and 1967 Flow-availability windows, with May-September complete-C coverage used as nearly stable reference information"
    },
    "answer_type": "multi-row ordered table"
  },
  "rubric": {
    "inclusion_conditions": [
      "Screen only among Peace River mainstem stations between Dunvegan Bridge and Fifth Meridian.",
      "A genuinely reusable station must satisfy the availability-page rule that both 1966 and 1967 appear in the Flow table and that every month from May through September is complete.",
      "The final output must jointly report FINAL_STATION, FIRST_BREAK_AFTER_FINAL, and PROVISIONAL_STATION, while repeating provisional_count and final_count in every row."
    ],
    "exclusion_conditions": [
      "Exclude results that treat a station as usable simply because the target years have Flow records.",
      "Exclude results that do not verify completeness month by month from May through September.",
      "Exclude results that mark a station such as 07KA002 as FINAL_STATION when availability-page evidence shows FLOW_GAP."
    ],
    "normalization": {
      "field_separator": "|",
      "record_separator": "\n",
      "header_row": "omit the header row; emit data rows only",
      "schema": [
        "rank",
        "station_number",
        "diagnosis_role",
        "target_window_status",
        "provisional_count",
        "final_count"
      ],
      "rank": "emit the fixed order 1, 2, 3 for FINAL_STATION, FIRST_BREAK_AFTER_FINAL, and PROVISIONAL_STATION",
      "station_number": "use uppercase WSC station codes exactly as the Reference Index and availability pages show",
      "diagnosis_role": [
        "FINAL_STATION",
        "FIRST_BREAK_AFTER_FINAL",
        "PROVISIONAL_STATION"
      ],
      "target_window_status": [
        "PASS",
        "LEVEL_ONLY",
        "FLOW_GAP",
        "NO_TARGET_RECORD"
      ],
      "count_fields": "repeat the global provisional_count and final_count in every row as plain integers",
      "sorting_or_selection": "emit rows in the fixed diagnostic order FINAL_STATION, FIRST_BREAK_AFTER_FINAL, PROVISIONAL_STATION"
    }
  }
}