<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://ichef-1.bbci.co.uk/news/560/media/images/65147000/jpg/_65147154_lemonade_carbonated_water_drink_with_ice_lemon-spl-1.jpg>
<http://www.bbc.co.uk/news/health-20943509>