<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eba1fdd7c57_-_arrow-arm-crunch-xl.jpg>
<http://www.womansday.com/health-fitness/workout-routines/advice/g813/tummy-toning-exercises/?src=shelter_footer>