<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/320x426/54f5ff591b1ff_-_01-woman-during-a-run-lgn.jpg>
<http://www.womansday.com/health-fitness/workout-routines/advice/g1379/burn-calories-fast/>