<http://www.arifbutt.me/lec029-linux-log-files-arif-butt-pucit/lec029-linux-log-files-arif-butt-pucit-2/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://www.arifbutt.me/lec029-linux-log-files-arif-butt-pucit/lec029-linux-log-files-arif-butt-pucit-2/>