<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2012/06/02/120602033424_leonpanetta304_reuters.jpg>
<http://bbcvietnamese.com/vietnamese/world/2013/05/130530_shangrila_2013_preview.shtml>