<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/71143000/jpg/_71143792_m3820011-woman_s_face_in_pain_or_anxiety-spl.jpg>
<http://www.bbc.com/news/health-24932880>