<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/2013/10/21/131021062001_isro_304x304__nocredit.jpg>
<http://www.bbc.com/hindi/science/2013/10/131021_india_mars_mission_ap.shtml>