<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/61015000/jpg/_61015626_49da6bab-a407-48de-b523-7bc8e64e058d.jpg>
<http://www.bbc.com/news/science-environment-18353962>