| http://www.w3.org/ns/prov#value | - FIG. 5A is a schematic diagram illustrating the high level structure of a second type of communication protocol that can be used among the Client System Ca, the IPSD Server Sb, and the IPSI Server Sc of the IPSI finding system hereof when the GUI browser program on the Client System is in its IPSI Finder Mode of operation, requiring as input a UPSN to determine the URL(s) of the corresponding prod
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