<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://nypost.com/2012/03/06/restaurant-letter-grades-help-make-food-safer-to-eat-bloomberg/NewsArticle>
<http://nypost.com/2012/03/06/restaurant-letter-grades-help-make-food-safer-to-eat-bloomberg/>