<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/160x213/54eb7f8fb175a_-_soothe-an-upset-stomach-with-arugula-mdn.jpg>
<http://www.womansday.com/health-fitness/nutrition/advice/g139/34-stay-healthy-superfoods-5411/>