A region is organized within a dimension ? held in a configuration by it. The generic organizing force, of which classification (is_classified_by), mereological composition (has_part) and position on a dimension (is_region_for) are the special cases. Domain is the organized region, range the dimension organizing it. Framework-owned rather than borrowed: it heads the DUL-named specifics without importing a DUL axiom, and it avoids the false friend in is_region_for, whose "region" is DUL's abstract value (this layer's VALUE) and not this layer's REGION, which is any concept.