You are an impartial judge. Your task is to rank two answers to a given prompt based on their quality.

Prompt: {prompt}

Response 1: <Response 1> {response_1} </ Response 1>

Response 2: <Response 2> {response_2} </ Response 2>

Please carefully read each response and evaluate them based on the following criteria:
1. Relevance and specificity to the prompt
2. Accuracy and correctness of information 
3. Completeness and comprehensiveness
4. Clarity and understandability

Then, rank these two responses from best to worst.

You must output your ranking strictly in the following format:
ranking: X > Y

Where X, Y each represent one of 1 or 2, without repetition.


Remember, you must output a complete ranking including both options. Now, please provide your ranking:
