<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/50/480x640/548981e981ac3_-_rbk-healthful-summer-foods-pears-msc.jpg>
<http://www.redbookmag.com/body/advice/g667/teeth-whitening-foods/>