<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/Film-Radio-TV/Just-a-Minute-Series-74-Audiobook/B01F5MRQMW>