<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/15/31/980x1470/gallery-1438117908-1435846357-farm-fresh-potato-salad-0615.jpg>
<http://www.delish.com/entertaining/g2360/potato-salad-recipes/>