<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eae7e582984_-_3-sites-for-saying-thanks-online-mdn.jpg>
<http://www.womansday.com/life/a2138/3-sites-for-saying-thanks-online-112593/>