<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/50959000/jpg/_50959907_elevchglatlon_20_rainbowpurpleorangebright-3to3_large.wicesatdem.jpg>
<http://www.bbc.com/news/science-environment-12285230>