{
  "winner": "A | B | Tie",
  "confidence": "Low | Medium | High",
  "dimensions": {
    "factuality": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" },
    "relevance": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" },
    "instruction_following": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" },
    "completeness": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" },
    "safety": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" },
    "clarity": { "a_score": 0, "b_score": 0, "better": "A | B | Tie" }
  },
  "key_differences": ["string"],
  "issues_a": [
    { "title": "string", "severity": "Low | Medium | High", "quote": "string", "why": "string", "suggested_fix": "string" }
  ],
  "issues_b": [
    { "title": "string", "severity": "Low | Medium | High", "quote": "string", "why": "string", "suggested_fix": "string" }
  ],
  "recommended_response": "A | B | Tie",
  "recommendation": "string",
  "improvements": "string"
}