<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/14/31/640x320/1406570656-down_dog_pushups_-_arms.gif>
<http://www.cosmopolitan.com/health-fitness/advice/a29517/upper-body-workout-better-than-pushups/>