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"http://www.audible.com/search?advsearchKeywords={search_term_string}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.audible.com/pd/Newspapers-Magazines/The-Morning-Read-from-The-Wall-Street-Journal-February-09-2012-Audiobook/B005Q0FE6E>