<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/320x240/54cb66c12f03a_-_songdo-02-0313-lgn.jpg>
<http://www.popularmechanics.com/technology/design/g1774/the-city-of-tomorrow-exists-today-in-south-korea/>