| http://www.w3.org/ns/prov#value | - he product information pages are critical or non-critical. [0128] When a vendor updates the product information pages, if the updates are designated as critical i.e. pricing and/or term data is changed, Internet retailers who have the product in their Internet retailer product catlaog are notified and are required to update their Internet retailer product catalog within a specified time frame.
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