| http://www.w3.org/ns/prov#value | - It should be noted that a procedure of receiving bid request information at the server 21 in S4020, S4030 corresponds to a request procedure. [0589] In S4030, desired conditions (required items such as a bid form, a range, a bidding period and so on) are selected. [0590] In S4040, an element auction is started.
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