<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/67354000/jpg/_67354105_201304_23_acrossamerica_goldengateflight_revillard-12(1).jpg>
<http://www.bbc.com/news/science-environment-23195087>