<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/480x552/54fed79f4a0f5-ghk-barnes-and-noble-nook-xl-98968253.jpg>
<http://www.goodhousekeeping.com/electronics/tablet-pc-reviews/g318/best-tablets/>