<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://esq.h-cdn.co/assets/cm/15/06/480x186/54d58f0e73a1a_-_esq-post-office-murals-01-0213-mdn.jpg>
<http://www.esquire.com/news-politics/g1379/post-office-murals-0213/>