<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/Classics/The-Wonderful-Wizard-of-Oz-Audiobook/B007BR5KZA?ref_=cat_22396_c9_6>