A data embodying object is programmed in accordance with object oriented techniques, and implements data retrieval methods without access to an external database, but rather using code in the object that includes immediate values which themselves embody the data to be retrieved in response to an invocation of the method. The lift units occupy an at least triangular flexible layout on the base. The outermost layer of the resin layer may be an adhesive layer composed of a phenol resin based composition. Each of the intermediate units includes a bill storage section, a conveying mechanism, a taking-in and taking-out mechanism and a switcher for switching a bill-moving direction. Many of the embodiments include intestinal liners or sleeves, but they need not. The software design and implementation method are based on a combination of object composition and desynchronizable inter-object interactions.