<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/640x430/54fe3713343e5-woman-wearing-glasses-1111-xl.jpg>
<http://www.goodhousekeeping.com/health/a13056/presbyopia-symptoms-treatment/>