<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://rbk.h-cdn.co/assets/cm/14/49/640x480/547f02716d900_-_alexander-family-one-child-1-1109-msc.jpg>
<http://www.redbookmag.com/life/mom-kids/advice/a5304/how-many-kids/>