| http://www.w3.org/ns/prov#value | - ffer of a reward as an incentive for each recipient to submit a response to the query; collecting, through a medium other than the mass-media, non-interactive broadcast network, the response to the query from each of responding ones of the recipients, wherein receipt of each response having a correct reply to the query verifies that the responding recipient has been exposed to at least the selecte
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