<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/980x735/54ff406a7c8e1-medical-team-with-patient-u10di8-s2.jpg>
<http://www.goodhousekeeping.com/life/inspirational-stories/g1030/boston-marathon-victims/>