<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/49/547eb5b8711a7_-_fertility-jody-large-new.jpg>
<http://www.redbookmag.com/body/pregnancy-fertility/a1976/0407-fertility-diaries/>