<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://pop.h-cdn.co/assets/cm/15/05/640x320/54cac0e6ed4bc_-_boot_dryer_0311-de.jpg>
<http://www.popularmechanics.com/home/how-to-plans/how-to/a6620/dry-wet-boots-with-the-diy-incubooter/>