def get_top_capability(capabilities):
    """
    Returns the top capability from a list of capabilities.

    Args:
        capabilities (list): A list of tuples containing capability information.

    Returns:
        tuple: The top capability.
    """
    return max(capabilities, key=lambda x: x[1])

p = get_top_capability([('v5_1768236144', 108217.11959687909, 721, 15009.3),
                       ('v5_1768235312', 89435.63603047856, 734, 12184.7),
                       ('v5_1768235983', 98379.19963352643, 987, 9967.5)])
print(p)