<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/65899000/jpg/_65899450_492e1c0b-404c-4127-8f08-a37856474f70.jpg>
<http://www.bbc.com/cymrufyw/21467624>