<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/980x701/54ebca5388259_-_rbk-25-lazy-ways-to-burn-100-calories-15-b5sv0q-s2.jpg>
<http://www.womansday.com/health-fitness/workout-routines/g1390/easy-ways-to-burn-calories-redbook/?click=ht>