<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/54133000/jpg/_54133252_unidentified_artist_us19_manofscience224x299.jpg>
<http://www.bbc.co.uk/news/world-us-canada-14191249>