<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://clv.h-cdn.co/assets/cm/15/09/54eae9be94b2c_-_primrose-garden-de-38590278.jpg>
<http://www.countryliving.com/gardening/garden-ideas/advice/a2694/primroses-gardening-0309/>