| http://www.w3.org/ns/prov#value | - In a preferred embodiment the graphical user interface 150 is a software program adapted to operate on a computer with a display, keyboard and pointing device, such as a mouse, the software program running on an operating system, such as Windows 98 by Microsoft Corporation of the USA, that supports such an interface. (The computer, display, keyboard, and mouse are not shown). [0051] The document c
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