Annotating a resource as not processing personal data

Hi

This is somewhat outside of the scope of your working group, but I want to
annotate resources explicitly as not processing personal data, so that
resources that have no annotations can be identified, and so that resources
can be divided into three groups: resources that process personal data (i.e
has ?resource rdf:type dpv:PersonalDataHandling), resources that do not
process personal data, and resources for which it is not known if they
process personal data. I want to use this to annotate a bunch of cloud
resources (i.e. databases, blob containers, event streams).

Is there an elegant way to explicitly annotate resources as not processing
personal data that anyone is aware of?

Regards
Iwan Aucamp