<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/480x552/54c82e652ff3b_-_string_trimmers_04_0506-xl-30921279.jpg>
<http://www.popularmechanics.com/home/tools/reviews/g66/2696256/>