<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/74874000/jpg/_74874412_h1101266-selection_of_foods_from_a_balanced_diet-spl.jpg>
<http://www.bbc.com/news/health-27422547?postid=119481942>