<https://techblog.gr/b2b/honor-the-space-mia-eidiki-apostoli-gia-peiramata-se-synthikes-midenikis-varytitas/#article>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://techblog.gr/b2b/honor-the-space-mia-eidiki-apostoli-gia-peiramata-se-synthikes-midenikis-varytitas/>