<https://impactsummit.global/keep-your-customers-the-three-keys-to-unlock-customer-retention-ali-cudby/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://impactsummit.global/keep-your-customers-the-three-keys-to-unlock-customer-retention-ali-cudby/>