If a processor or agent does an explicit operation on existing elements.
Operation type unspecified. If no operation is specified a
provenance entry is simply used to match against a
Add an element.
Remove an element identified by
Updates any fields within the given
provenance scope of the message. It 'overwrites'
the fields rather than replacing them. This is
especially relevant when we just want to update
a field value of an entity without also
affecting all the child properties.
Currently unused. Replace an element identified by
Deprecated. Request human review for the element identified
Deprecated. Element is reviewed and approved
at human review, confidence will be set to 1.0.
Deprecated. Element is skipped in the