@staticmethod
def __wrong_combined_entry(to_test):
    """
        Private method to test the correctness of entries for "combined"
        data
        :param to_test:
        :return:
        """
    if not isinstance(to_test, tuple) or len(to_test) != 2:
        return True
    elif to_test[1] < to_test[0]:
        return True
    return False
