<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://digitalspyuk.cdnds.net/13/43/640x320/landscape_tech-os-x-mavericks-screenshot-4.jpg>
<http://www.digitalspy.com/tech/feature/a525307/os-x-mavericks-everything-you-need-to-know/>