<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/70998000/gif/_70998261_yemen_sanaa_taiz_08112013.gif>
<http://www.bbc.co.uk/news/world-middle-east-24870526>