<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/64251000/jpg/_64251967_061pnglongbeakedechidna,trhleapng.jpg>
<http://www.bbc.com/news/magazine-20323753>