| http://www.w3.org/ns/prov#value | - In one embodiment, the system status messages are displayed on the display (e.g., to indicate which operation is occurring such as filling, withdrawing or collecting, and the like) along with progress LEDs or other indicators to give an approximation of a portion of completion of the current step or function (such as by using 4 LEDs that light as each fourth of the operation is completed and flash
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