<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://clv.h-cdn.co/assets/15/22/1432748464-screen-shot-2015-05-27-at-14006-pm.png>
<http://www.countryliving.com/gardening/a35558/tree-growing-from-recyclable-books/>