<https://www.selectabase.co.uk/#/schema/person/4d481494a3808a3a6c07f3be9624d63b>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.selectabase.co.uk/2014/12/how-to-manage-direct-marketing-leads-effectively-2/>