<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/15/46/980x490/landscape-1447105645-delish-twice-baked-sweet-potatoes-with-bacon-brown-sugar-and-marshmallows.jpg>
<http://www.delish.com/holiday-recipes/thanksgiving/g622/sweet-potato-recipes/>