{"sheet_index": [{"sheet_id": "page-1", "sheet_number": null, "sheet_title": "Page 1 (extraction failed)", "discipline": "Unknown", "drawing_type": "cover", "level": null, "page_number": 1, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "low"}, {"sheet_id": "G11.01", "sheet_number": "G11.01", "sheet_title": "VICINITY PLAN, ABBREVIATIONS, PROJECT GENERAL NOTES & SHEET INDEX", "discipline": "Architectural", "drawing_type": "sheet_index", "level": null, "page_number": 2, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "G11.02", "sheet_number": "G11.02", "sheet_title": "SYMBOLS & TYPICAL HEIGHTS", "discipline": "Architectural", "drawing_type": "notes", "level": null, "page_number": 3, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "G11.03", "sheet_number": "G11.03", "sheet_title": "LANDLORD WORK LETTER", "discipline": "Architectural", "drawing_type": "notes", "level": "BUILDING C", "page_number": 4, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "G11.04", "sheet_number": "G11.04", "sheet_title": "FIRE CODE DESIGN AND COMPLIANCE REVIEW", "discipline": "Architectural", "drawing_type": "code_life_safety", "level": null, "page_number": 5, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "G21.01", "sheet_number": "G21.01", "sheet_title": "CODE / EXITING PLAN", "discipline": "Architectural", "drawing_type": "code_life_safety", "level": null, "page_number": 6, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "G31.01", "sheet_number": "G31.01", "sheet_title": "SPECIFICATIONS", "discipline": "Specifications", "drawing_type": "specifications", "level": null, "page_number": 7, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "high"}, {"sheet_id": "G31.02", "sheet_number": "G31.02", "sheet_title": "SPECIFICATIONS", "discipline": "Specifications", "drawing_type": "specifications", "level": null, "page_number": 8, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "high"}, {"sheet_id": "G31.03", "sheet_number": "G31.03", "sheet_title": "SPECIFICATIONS", "discipline": "Specifications", "drawing_type": "specifications", "level": null, "page_number": 9, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "high"}, {"sheet_id": "G31.04", "sheet_number": "G31.04", "sheet_title": "SPECIFICATIONS", "discipline": "Specifications", "drawing_type": "specifications", "level": null, "page_number": 10, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "high"}, {"sheet_id": "G31.05", "sheet_number": "G31.05", "sheet_title": "SPECIFICATIONS", "discipline": "Specifications", "drawing_type": "specifications", "level": null, "page_number": 11, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "high"}, {"sheet_id": "G31.06", "sheet_number": "G31.06", "sheet_title": "UL RATINGS - DESIGN #U419", "discipline": "Fire Protection", "drawing_type": "detail", "level": null, "page_number": 12, "qaqc_relevance": "medium", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "A11.01", "sheet_number": "A11.01", "sheet_title": "SITE PLAN", "discipline": "Architectural", "drawing_type": "site_plan", "level": null, "page_number": 13, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "page-14", "sheet_number": null, "sheet_title": "Page 14 (extraction failed)", "discipline": "Unknown", "drawing_type": null, "level": null, "page_number": 14, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "low"}, {"sheet_id": "A22.01", "sheet_number": "A22.01", "sheet_title": "REFLECTED CEILING PLAN", "discipline": "Architectural", "drawing_type": "reflected_ceiling_plan", "level": null, "page_number": 15, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "A23.01", "sheet_number": "A23.01", "sheet_title": "FINISH PLAN", "discipline": "Interiors", "drawing_type": "floor_plan", "level": null, "page_number": 16, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "A24.01", "sheet_number": "A24.01", "sheet_title": "FURNITURE/ POWER/ DATA FLOOR PLAN", "discipline": "Architectural", "drawing_type": "floor_plan", "level": null, "page_number": 17, "qaqc_relevance": "high", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "A25.01", "sheet_number": "A25.01", "sheet_title": "ROOF PLAN", "discipline": "Architectural", "drawing_type": "roof_plan", "level": "ROOF", "page_number": 18, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "A51.01", "sheet_number": "A51.01", "sheet_title": "ELEVATIONS, ENLARGED PLANS, & DETAILS", "discipline": "Architectural", "drawing_type": "detail", "level": null, "page_number": 19, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "page-20", "sheet_number": null, "sheet_title": "Page 20 (extraction failed)", "discipline": "Unknown", "drawing_type": null, "level": null, "page_number": 20, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "low"}, {"sheet_id": "M01.01", "sheet_number": "M01.01", "sheet_title": "MECHANICAL NOTES & SCHEDULES", "discipline": "Mechanical", "drawing_type": "notes", "level": null, "page_number": 21, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "page-22", "sheet_number": null, "sheet_title": "Page 22 (extraction failed)", "discipline": "Unknown", "drawing_type": null, "level": null, "page_number": 22, "qaqc_relevance": "low", "code_review_relevance": "none", "confidence": "low"}, {"sheet_id": "M02.02", "sheet_number": "M02.02", "sheet_title": "MECHANICAL ROOF PLAN", "discipline": "Mechanical", "drawing_type": "roof_plan", "level": "ROOF", "page_number": 23, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "M03.01", "sheet_number": "M03.01", "sheet_title": "MECHANICAL DETAILS", "discipline": "Mechanical", "drawing_type": "detail", "level": null, "page_number": 24, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "E01.01", "sheet_number": "E01.01", "sheet_title": "NOTES AND LEGEND", "discipline": "Electrical", "drawing_type": "notes", "level": null, "page_number": 25, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "E01.02", "sheet_number": "E01.02", "sheet_title": "ONE LINE DIAGRAM AND SCHEDULES", "discipline": "Electrical", "drawing_type": "one_line", "level": null, "page_number": 26, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "E02.01", "sheet_number": "E02.01", "sheet_title": "FLOOR PLAN - POWER", "discipline": "Electrical", "drawing_type": "mep_plan", "level": null, "page_number": 27, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "E02.02", "sheet_number": "E02.02", "sheet_title": "ROOF PLAN - POWER", "discipline": "Electrical", "drawing_type": "roof_plan", "level": "ROOF", "page_number": 28, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "E03.01", "sheet_number": "E03.01", "sheet_title": "FLOOR PLAN - LIGHTING", "discipline": "Electrical", "drawing_type": "mep_plan", "level": null, "page_number": 29, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "E04.01", "sheet_number": "E04.01", "sheet_title": "FLOOR PLAN - SPECIAL SYSTEMS", "discipline": "Technology / Low Voltage", "drawing_type": "mep_plan", "level": null, "page_number": 30, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "E05.01", "sheet_number": "E05.01", "sheet_title": "DETAILS", "discipline": "Electrical", "drawing_type": "detail", "level": null, "page_number": 31, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "E05.02", "sheet_number": "E05.02", "sheet_title": "DETAILS", "discipline": "Electrical", "drawing_type": "detail", "level": null, "page_number": 32, "qaqc_relevance": "high", "code_review_relevance": "medium", "confidence": "high"}, {"sheet_id": "P01.01", "sheet_number": "P01.01", "sheet_title": "NOTES AND LEGEND", "discipline": "Plumbing", "drawing_type": "notes", "level": null, "page_number": 33, "qaqc_relevance": "medium", "code_review_relevance": "low", "confidence": "high"}, {"sheet_id": "P02.01", "sheet_number": "P02.01", "sheet_title": "FLOOR PLAN - SANITARY WASTE & VENT", "discipline": "Plumbing", "drawing_type": "mep_plan", "level": null, "page_number": 34, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "P02.02", "sheet_number": "P02.02", "sheet_title": "FLOOR PLAN - DOMESTIC WATER", "discipline": "Plumbing", "drawing_type": "mep_plan", "level": null, "page_number": 35, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}, {"sheet_id": "P03.01", "sheet_number": "P03.01", "sheet_title": "DETAILS & RISERS", "discipline": "Plumbing", "drawing_type": "riser_diagram", "level": null, "page_number": 36, "qaqc_relevance": "high", "code_review_relevance": "high", "confidence": "high"}], "missing_expected_sheets": [{"expected_sheet_type": "floor_plan", "reason": "Logical gap in architectural plan numbering (likely A21.01) before A22.01. Page 14 extraction failed in this location. A floor plan is fundamental to a drawing set.", "confidence": "high"}, {"expected_sheet_type": "mep_plan", "reason": "Logical gap in mechanical plan numbering (likely M02.01) before M02.02. Page 22 extraction failed in this location. A main level mechanical plan is expected.", "confidence": "high"}, {"expected_sheet_type": "structural_plan", "reason": "No sheets with an 'S' prefix are present. Structural drawings are typically required for any project involving new construction or significant renovation.", "confidence": "high"}, {"expected_sheet_type": "building_elevation", "reason": "A standard part of an architectural set. A51.01 mentions 'ELEVATIONS' but this may refer to interior or partial elevations, not primary building elevations.", "confidence": "medium"}, {"expected_sheet_type": "section", "reason": "Building sections are a standard part of an architectural set and are not explicitly listed.", "confidence": "medium"}, {"expected_sheet_type": "fire_alarm_plan", "reason": "No dedicated Fire Alarm sheets are present. E04.01 'Special Systems' may contain this information, but dedicated sheets are common and often required for life safety review.", "confidence": "medium"}]}