<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfda3881619_-_gas-apps-05-0714-de-lg.jpg>
<http://www.popularmechanics.com/cars/g1584/5-free-apps-to-save-you-money-on-gas/>