<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://del.h-cdn.co/assets/cm/15/10/160x160/54f642804aa4a_-_avocado-corn-salsa-ew0610-xl-nve3ls-29512201.jpg>
<http://www.delish.com/cooking/g160/easy-avocado-recipes/>