<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://esq.h-cdn.co/assets/cm/15/05/54cc8fa84b726_-_esq-09-sexual-positions-0412-lg-35026315.jpg>
<http://www.esquire.com/lifestyle/sex/a13292/sex-survey-2012-0412/?click=mid>