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In an email to this group on 18 February 2012, Leif and on a page on this site, Leif Johansson proposed the notion of a formal IANA registry for Entity Categories. IANA registries must be defined in an IETF Internet-Draft that becomes the basis for a formal request to establish the registry. One of the clear advantages of such an approach is that the Internet-Draft includes process and governance proposals as well as information on syntax, semantics and other formal features of the proposed registry.
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