<https://onlinefundraisingtoday.com/#/schema/person/c3e6301b4481c73a7eb01d8ae740402e>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://onlinefundraisingtoday.com/2018/07/26/which-fundraising-letter-to-send/>