<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2014/03/19/140319141009_11_304x171_bbc_nocredit.jpg>
<http://www.bbc.com/zhongwen/trad/china/2014/03/140319_twprotest_background_byjames_kill.shtml>