<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x388/54cb1768dd32c_-_iris-spacecraft-de.jpg>
<http://www.popularmechanics.com/space/a9269/a-new-look-deep-inside-the-sun-15731883/>