<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/Nostalgia-Radio/Golden-Age-of-Radio-Audiobook/B003HENVKM?ref_=cat_22266_c6_1_i>