<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef.bbci.co.uk/news/ws/560/amz/worldservice/live/assets/images/2016/03/17/160317035731_demonstrators_brazil_640x360_afp_nocredit.jpg>
<http://www.bbc.com/mundo/noticias/2016/03/160317_juez_suspende_nominacion_lula_ministro_brasil_roussef>