<https://coolklub.com/testirajte-se-da-li-ste-u-98-ispravnih-ili-2-uvrnutih/#webpage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://coolklub.com/testirajte-se-da-li-ste-u-98-ispravnih-ili-2-uvrnutih/>