<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x247/54cb405bacf84_-_microbe-killers-02-0714-de.jpg>
<http://www.popularmechanics.com/science/health/a12986/to-kill-superbacteria-bring-on-the-bling-16988989/>