SBVR11 — new SBVR issue - relationship of 'vocabulary' and 'rulebook'

'Vocabulary' is defined in clause 11.1.3 as "set of designations and fact type forms primarily drawn from a single language to express concepts within a body of shared meanings ".

'Rulebook' is defined in clause 11.2.4 as "the set of representations determined by a given speech community to represent in its language all meanings in its body of shared meanings ".

How does 'vocabulary' relate to 'rulebook'? When would an SBVR tool vendor use one or the other? The specification should either explain why it defines both these two concepts and when one would use one versus the other.
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A vocabulary contains only designations, whereas a rulebook contains all representations (designations, definitions, notes, examples, etc.) A rulebook may also include representations of the elements of guidance in a body of shared guidance. A terminological dictionary contains representations of only terminology.
The issue is addressed by adding clarifying informative text to the specification.