<http://blogs.biomedcentral.com/on-health/2017/06/10/how-do-you-define-sedentary-behaviour/#primaryimage>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://blogs.biomedcentral.com/on-health/2017/06/10/how-do-you-define-sedentary-behaviour/>