def calculate_capability(capability_name: str) -> tuple:
    """
    Calculate capability score based on given name.

    Args:
        capability_name (str): Name of the capability.

    Returns:
        tuple: Capability score and its corresponding index.
    """
    capabilities = [
        ('evolved_verified_generate_test_1768680667', 4235.89001196408, 51, 8305.7),
        ('verified_default', 4235.0, 51, 8303.9),
        ('evolved_verified_create_memory_1768424362', 4235.89001196408, 52, 8145.9)
    ]

    for capability in capabilities:
        if capability[0] == capability_name:
            return (capability[1], capability[2])

    return None