<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x255/54cae22b39d46_-_battery-02-0212-de.jpg>
<http://www.popularmechanics.com/science/energy/a7474/mri-lets-scientists-see-inside-batteries-6801505/?src=rss>