<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/560/media/images/68138000/jpg/_68138464_f0040500-beekeepers_with_honey_combs-spl.jpg>
<http://www.bbc.com/news/science-environment-22861651>