<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/77202000/jpg/_77202485_m2450389-depressed_elderly_man_holds_his_hands_to_his_head-spl.jpg>
<http://www.bbc.com/news/health-28954661>