| http://www.w3.org/ns/prov#value | - The screen E is provided with a trading type indicators 160 for indicating the type of trade, i.e., the ???direct trade??? or the ???information trade???, and a variety of entry fields E1 to E3 for identifying an article or a service such as the name of the article or service (for specifying details), an article number, the contents of the service, and so on.
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