<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/69962000/jpg/_69962680_c0119324-climate_change_space_mirrors,_artwork-spl.jpg>
<http://www.bbc.com/news/science-environment-25639343>