<https://sharp.dft.gov.uk/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/e394aaad9683cfd206575b0a5f9d707b?s=96&d=mm&r=g>
<https://sharp.dft.gov.uk/2016/04/25/2842/>