{"conflicts": [{"conflict_id": "SK1_vent_pipe_size", "category": "detail_vs_plan_mismatch", "severity": "medium", "confidence": "high", "location": "Lounge, Sink SK-1", "disciplines": ["Plumbing"], "sheets": ["P02.01", "P03.01"], "description": "The plumbing floor plan shows a 2-inch vent pipe for sink SK-1, while the plumbing riser diagram indicates a 1 1/2-inch vent for the fixture group that includes this sink. The pipe size needs to be consistent across all drawings to ensure correct 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": "verify with engineer"}]}