<http://schema.org/target>
"https://mobile.audible.com/search.htm?keywords={search_term_string}"^^<http://www.w3.org/2001/XMLSchema#string>
<https://mobile.audible.com/pd/Newspapers-Magazines/The-New-York-Times-Audio-Digest-January-18-2011-Audiobook/B004ARKRPW>