<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/06/54cfcac41b39c_-_dads_tools_02_0910-md-32157223.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g378/tools-gifts/>