<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/63291000/jpg/_63291411_c0019095-man_sneezing.jpg>
<http://www.bbc.co.uk/news/health-19834740?postId=113909699>