<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/10/54fb8898f3c19-digital-camera-disaster-s3.jpg>
<http://www.goodhousekeeping.com/electronics/digital-camera-reviews/a16090/digital-camera-faq-1001/>