<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x360/54caf5c54f538_-_multi-purpose-tools-14a-0912-de.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g950/15-surprising-uses-for-your-tools/>