<http://4gym-ag-dimitr.att.sch.gr/4gym/anavathmologisi-a-periodoy-ioynioy-2018-2/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://4gym-ag-dimitr.att.sch.gr/4gym/anavathmologisi-a-periodoy-ioynioy-2018-2/>