<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ghk.h-cdn.co/assets/cm/15/11/54fecfc5e9656-0314-like-son-like-mother-1-msc.jpg>
<http://www.goodhousekeeping.com/health/a19923/traumatic-brain-injuries/>