<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/08/54ea9c745eb19_-_01-wd1009-office-germ-havens-2.jpg>
<http://www.womansday.com/home/organizing-cleaning/tips/a1036/9-surprising-office-germ-havens-99469/>