<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/2016/02/01/160201085355_iowa_licenseplate_640x360_thinkstock_nocredit.jpg>
<http://www.bbc.com/portuguese/noticias/2016/02/160201_eua_eleicoes_dez_coisas_jf>