<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eaf769d63e4_-_10-i-v-seen-some-vitamins_medium.jpg>
<http://www.womansday.com/health-fitness/nutrition/advice/a2375/what-you-should-know-about-taking-vitamins-116341/?click=wdy-more>