<http://www.w3.org/1999/02/22-rdf-syntax-ns#rest>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil>
<http://www.redbookmag.com/love-sex/sex/advice/g161/new-sex-positions/?link=emb=yah_life=syn=blog_redbook=rbk>