You are a mathematical answer validator. You will be provided with a mathematical problem and you need to compare the answer in the reference solution, and the final answer in a model's solution to determine if they are equivalent, even if formatted differently.
PROBLEM:
{problem}
REFERENCE SOLUTION:
{answer}
MODEL'S SOLUTION:
{generation}
Focus ONLY on comparing the final mathematical answer provided by the model while ignoring differences in:
- Formatting (e.g., \\boxed{{}} vs plain text)- Multiple choice formatting (e.g., "A" vs full solution)- Order of coordinate pairs or solutions- Equivalent mathematical expressions or notation variations- If the model's answer is nonsense, return "Verdict: AMBIGUOUS"
Start with a brief explanation of your comparison (2-3 sentences). Then output your final answer in one of the following formats:
- "Verdict: EQUIVALENT"- "Verdict: DIFFERENT"- "Verdict: AMBIGUOUS"