<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/68665000/jpg/_68665381_d5106eeb-b060-45bf-938f-6c725ee19876.jpg>
<http://www.bbc.co.uk/news/science-environment-23259419>