<https://msoffice-prowork.com/ref/#/schema/person/b3d00da53b8d186e963fbc7c2d5e5cfd>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/Person>
<https://msoffice-prowork.com/ref/excel/excelfunc/date-time/yearfrac/>