<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/Self-Development/The-Young-Atheists-Survival-Guide-Audiobook/B00B9G52R0?ref_=cat_10>