<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/08/54ea910fe3b60_-_03-burn-the-candle-at-both-ends-istock_000000377972small-2.jpg>
<http://www.womansday.com/life/a850/the-origins-of-12-common-idioms-83098/>