<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/10/480x360/54f5fdd79fdf8_-_1-woman-exercising-lgn.jpg>
<http://www.womansday.com/health-fitness/workout-routines/advice/g1242/when-to-exercise/?click=try>