<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://cos.h-cdn.co/assets/cm/14/25/539fcef1bb292_-_cos-04-avoid-sex-only_mdn.jpg>
<http://www.cosmopolitan.com/sex-love/how-to/g2732/how-to-enjoy-being-single/>