def generate_supper_efficiency_lower_bound():
    """ Returns lower bound of the inverse of efficiency score for
        a super efficiency envelopment model.

        Note:
            This function only works with output-oriented envelopment models.

        Returns:
            double: 0, since efficiency score might be greater
                than 1 for super efficient output-oriented envelopment model.
    """
    return 0
