<http://schema.org/contactType>
"customer service"^^<http://www.w3.org/2001/XMLSchema#string>
<http://lovebooks.pl/9788302120763/Blizej-Geografii-Klasa-1-Czesc-1-Zeszyt-cwiczen-z-dostepem-do-zasobow-WSiPnetpl.html>