<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/History/A-Short-History-of-Nearly-Everything-Audiobook/B002V0KFPW/ref=pd_rsp_tl_1>