<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x478/54cb2354a63d3_-_curiosity-01-1213-de.jpg>
<http://www.popularmechanics.com/space/moon-mars/a9845/curiosity-finds-an-ancient-martian-lake-that-could-have-supported-life-16248264/>