vocabularies

The closed, Pool-governed set of legal SIDEWAYS relation names a Seedbed may draw as an edge between two instance product codes (not between grammar concepts). Each member names a shape of code-to-code link the Seedbed validates and stores in its own link table; the Pool only governs which names are legal, exactly as a token vocabulary governs which values are legal. No reference value-kind and no entity class is implied — the relation is an instance edge drawn downstream, never a concept-to-concept reference in the grammar (D7 stands). Seeded with variant_of (version→family); contains and same_physical_article join later.