<http://www.w3.org/1999/02/22-rdf-syntax-ns#first>
<http://wdy.h-cdn.co/assets/cm/15/09/54eadc2fb8be5_-_re-than-you-can-shake-a-stick-at-origins-of-weird-sayings-1.jpg>
<http://www.womansday.com/life/a1954/surprising-origins-of-everyday-phrases-111417/?src=shelter_footer>