<https://scramble.golftec.com/blog/2017/03/follow-through-wrist-bend-drill-fix-your-hook/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://scramble.golftec.com/blog/2017/03/follow-through-wrist-bend-drill-fix-your-hook/>