<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54cb0f3110eb0_-_tool-storage-01-0413-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g1157/8-great-tool-storage-solutions/>