<http://ceskaenergetika.cz/2014/04/26/youtube-video-embed/#arve-youtube-e9db0dr9yai63379f7c180c9658410136>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://ceskaenergetika.cz/2014/04/26/youtube-video-embed/>