and others may create additional . A is required to create a new , as each is defined by a . The   and a  are used to name the . Where a new is created against an existing pattern, then the following naming convention should be used (where the text "Specific name" is to be replaced by the specific name of the ).

Attribute Value Reference Set

Language Reference Set

For a Language:

For a Dialect:

Annotation Reference Set

Association Reference Set