<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f9d4f0eaac9_-_napkin-folding-atyourservice-final-xlg.jpeg>
<http://www.delish.com/entertaining/tabletop/how-to/g2296/at-your-service-napkin-folding/>