<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/160x213/54eb87d35bd39_-_family-fun-announce-fetes-the-eco-friendly-way-mdn.jpg>
<http://www.womansday.com/life/g302/its-easy-being-green-1498/>