<http://schema.org/target>
"http://www.audible.com/search?advsearchKeywords={search_term_string}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.audible.com/pd/Comedy/Im-Sorry-I-Havent-a-Clue-Volume-1-Audiobook/B002V8MYT4?ref_=pr_rev_1_1>