<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2011/09/03/110903074733_cn_china_obesity_gym_304x171_reuters_nocredit.jpg>
<http://bbcswahili.com/swahili/kwa_kina/2013/02/130218_mazoezi_afya.shtml>