{"conflicts": [{"conflict_id": "piping_vent_size_discrepancy_01", "category": "dimensional_disagreement", "severity": "medium", "confidence": "high", "location": "Sink Vent Piping (SK-1, SK-2, LAV-1, UR-1)", "disciplines": ["Plumbing"], "sheets": ["P02.01", "P03.01"], "description": "The vent pipe size is shown as 2 inches on the Sanitary Waste & Vent Plan (P02.01) for the main vent branch serving the fixtures, but is shown as 1 1/2 inches on the typical piping riser diagram (P03.01). The correct size needs to be confirmed and drawings coordinated for proper material procurement and installation.", "evidence": [{"discipline": "Plumbing", "sheet": "P02.01", "source_text": "2\"V", "asserted_value": "2 inch vent"}, {"discipline": "Plumbing", "sheet": "P03.01", "source_text": "1 1/2\"V", "asserted_value": "1 1/2 inch vent"}], "recommended_resolution": "coordinate drawings"}]}