<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://esq.h-cdn.co/assets/cm/15/05/54cc8fa648cd4_-_esq-01-married-mens-sex-lives-0412-lg-63906333.jpg>
<http://www.esquire.com/lifestyle/sex/a13292/sex-survey-2012-0412/?click=mid>