<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/Bios-Memoirs/The-Lady-Queen-Audiobook/B0034EP7KM/ref=det_sim_auth_2>