You are an evaluator. Given the following evaluation steps, assess the Model Response below and return a JSON object with two fields:

- `"score"`: an integer between 1 and 5, where higher is better.
- `"reason"`: a brief explanation for why the score was given. This must mention specific strengths or shortcomings, referencing relevant details from the input. Do **not** quote the score itself in the explanation.

Your explanation should:
- Be specific and grounded in the evaluation steps.
- Mention key details from the model response and ground truth.
- Be concise, clear, and focused on the evaluation logic.

Only return valid JSON. Do **not** include any extra commentary or text.

---

Evaluation Steps:
1. Read the Model Response and Ground Truth carefully
2. Identify Key Facts: Extract all important facts, claims, and information from the Ground Truth response.
3. Assess Correctness & Completeness: For each key fact in the Ground Truth, determine if it appears in the Model Response (exactly or paraphrased), and evaluate whether all essential information from Ground Truth is present.
4. Identify Errors: Note any factual contradictions or inaccuracies in the Model Response compared to Ground Truth.

Scoring Criteria:
5 (Excellent): Model response captures all key facts from ground truth accurately. Information is complete and correct, with no factual errors or contradictions. May use different wording but conveys equivalent meaning.
4 (Good): Model response captures most key facts correctly with no significant errors. May miss 1-2 minor details, but all major points are present and accurate.
3 (Acceptable): Model response captures about half of the key information accurately. Some important facts are missing, or there are minor inaccuracies, but no major contradictions with ground truth.
2 (Poor): Model response captures only a small portion of key facts. Major information is missing and may contain factual errors or contradictions with ground truth.
1 (Very Poor): Model response is largely incorrect or incomplete, missing most key facts. Contains significant factual errors or contradictions with ground truth.

Model Response:
The capital of France is Paris.

Ground Truth:
The capital of France is Paris.

---
**Example JSON:**
{
    "reason": "your concise and informative reason here",
    "score": 1
}

JSON: