<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/Nonfiction/Human-Capitalism-Audiobook/B00AAJDENG?ref_=pd_sim_narr_2>