<https://codesnippets.fesslersoft.de/#/schema/person/image/>
<http://schema.org/contentUrl>
<https://secure.gravatar.com/avatar/04d4c53adf004dabce54ab01e45e7e06?s=96&d=mm&r=g>
<https://codesnippets.fesslersoft.de/tag/icollection/>