<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/54cacb858c020_-_counterfeit_drugs_slideshow_495x170_081611.jpg>
<http://www.popularmechanics.com/science/health/a6824/nanoscale-encryption-the-solution-to-counterfeit-drugs/>