<http://schema.org/target>
"http://www.audible.co.uk/search?advsearchKeywords={search_term_string}"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.audible.co.uk/pd/Crime-Thrillers/Memoirs-of-Sherlock-Holmes-Volume-2-Dramatised-Audiobook/B004EVNPS0>