scope note

Description: 

A scope note is a textual description of the intension of a class or property.
Scope notes are not formal modelling constructs, but are provided to help explain the intended meaning and application of the CRM’s classes and properties. Basically, they refer to a conceptualisation common to domain experts and disambiguate between different possible interpretations. Illustrative example instances of classes and properties are also regularly provided in the scope notes for explanatory purposes.

Source: 
CIDOC-CRM