Provisional MRG Entry
A Provisional MRG entry is an MRG entry-under-construction that is part of one provisional MRG; it contains 'raw' data that documents (the semantic unit referred to by) a term, that is obtained either from (the header of) a curated text, or from an MRG entry of some existing MRG; this 'raw' data needs further processing in order to become valid for inclusion in an MRG. This further processing is described in the MRGT specifications.