See https://specifications.openehr.org/releases/AM/development/AOM2.html#_archetype_terminology_class and https://github.com/openEHR/specifications-ITS-BMM/blob/0003c592b2a74d6b3af21b0b43b3cc0e5e0ddd3c/components/AM/Release-2.3.0/openEHR_am_230.bmm#L345-L349
