<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/Sci-Fi-Fantasy/A-Game-of-Thrones-Audiobook/B005C564TY?ref_=pd_rsp_tl_rd_6>