<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/ContactPoint>
<http://lovebooks.pl/9788377857939/Zaskorniaki-i-inne-dziwadla-z-krainy-portfela-50-opowiastek-z-ekonomia-w-tle-plus-jedna.html>