def _l2t_subterp(label):
    """Helper function converting subterp labels to text. Assumes label has
    more then one segment"""
    if label[1:] == ['Subpart', 'Interp']:
        return 'Interpretations for Regulation Text of Part ' + label[0]
    elif label[1:] == ['Appendices', 'Interp']:
        return 'Interpretations for Appendices of Part ' + label[0]
    elif len(label) == 4 and label[1] == 'Subpart' and label[3] == 'Interp':
        interpretations_for = 'Interpretations for Subpart '
        return interpretations_for + label[2] + ' of Part ' + label[0]