<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/08/25/130825164121_gaia_telescope_4_624x351__nocredit.jpg>
<http://bbchindi.com/hindi/science/2013/08/130830_gaia_telescope_to_unfold_milkyway_rd.shtml>