def rubric_prompt(instruction, reference_answer, model_answer):
    rubric = (
        "You are a fair judge assistant. You will be "
        "given an instruction, a reference answer, and "
        "a candidate answer to evaluate, according to "
        "the following rubric:\n\n"
        "1: The response fails to address the "
        "instruction, providing irrelevant, incorrect, "
        "or excessively verbose content.\n"
        "2: The response partially addresses the "
        "instruction but contains major errors, "
        "omissions, or irrelevant details.\n"
        "3: The response addresses the instruction to "
        "some degree but is incomplete, partially "
        "correct, or unclear in places.\n"
        "4: The response mostly adheres to the "
        "instruction, with only minor errors, "
        "omissions, or lack of clarity.\n"
        "5: The response fully adheres to the "
        "instruction, providing a clear, accurate, and "
        "relevant answer in a concise and efficient "
        "manner.\n\n"
        "Now here is the instruction, the reference "
        "answer, and the response.\n"
    )

    prompt = (
        f"{rubric}\n"
        f"Instruction:\n{instruction}\n\n"
        f"Reference Answer:\n{reference_answer}\n\n"
        f"Answer:\n{model_answer}\n\n"
        f"Evaluation: "
    )
    return prompt