<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eb043fa4e80_-_are-you-in-control-of-your-worrying-mdn.jpg>
<http://www.womansday.com/health-fitness/wellness/advice/a2559/are-you-in-control-of-your-worrying-119646/>