<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/08/54ea87e4e2998_-_07-wd0609-molecular-foundry-at-berkeley-3.jpg>
<http://www.womansday.com/home/a711/8-innovative-green-buildings-77885/>