sentence1: The sales may be made by a public enterprise revolving fund (such as the Bonneville Power Administration), an intragovernmental revolving fund (such as the Government Printing Office), or a fund that is not a revolving fund (such as the Geological Survey).
sentence2: A public enterprise revolving fund, intragovernmental revolving fund, or a fund that is not a revolving fund are all types of funds that can make the sales.