<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.netdoctor.co.uk/healthy-living/news/a26770/health-effects-of-wearing-high-heels-harming-your-vocal-cords/>