<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://www.popularmechanics.com/technology/design/g1233/carnival-contrivances-a-brief-history-of-the-carousel/>
<http://www.popularmechanics.com/technology/design/g1233/carnival-contrivances-a-brief-history-of-the-carousel/>