<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/25/53a0884b62432_-_cos0510bookexcerpt002-mdn.jpg>
<http://www.cosmopolitan.com/health-fitness/news/a10370/stress-is-good-for-you/>