<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/54f646fd69410_-_sand-bucket-angel-food-cake-recipe-mslo0710-vmkpmp-xl.jpg>
<http://www.delish.com/cooking/g734/angel-vs-devil-food-cake/>