<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/320x426/54897a70a2053_-_rbk-healthful-summer-foods-canned-tuna-msc.jpg>
<http://www.redbookmag.com/body/health-fitness/advice/g1490/pantry-food-staples/>