<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/Comedy/Haben-Sie-schon-mal-versucht-sich-in-einer-Supermarktwarteschlange-zurueckzudraengeln-Audiobook/B00TYT9EOG>