<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2013/08/15/130815110810_cancer_genomes_624x351_spl.jpg>
<http://bbchindi.com/hindi/science/2013/08/130815_study_cancer_origin_sb.shtml>