==========================
Module, empty with version
==========================

module Campaign <https://example.org/v/Campaign#>
  version "2" <https://example.org/v2/Campaign#> is
end

---

(module
  name: (identifier)
  base: (iri)
  (module_version
    version_info: (quoted_string)
    version_uri: (iri))
  body: (module_body))
