<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/25/53a0092a9c739_-_cos-04-sleeping-technology-de.jpg>
<http://www.cosmopolitan.com/health-fitness/advice/g3858/technology-for-sleep/?src=rss>