| http://www.w3.org/ns/prov#value | - The apparatus of claim 1, wherein said database is a relational database, and further comprising database management means for managing said relational data base including means for creating tables to contain the data records stored in said database, said tables including an ITEM table, an ITEM PRICE table, an ADVERTISED SKU table, an AD RESPONSE table, a CENT CODE table, a COMPETITOR table, a COM
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