Do we have a written policy on when a grouping elment for Xs is named <listX> vs <XGrp>? I think the policy should be that we use <listX> when the order of Xs does, or may, have significance; we use <XGrp> when the order of Xs does not, or should not, have significance. In alphabetic order by the part of the GI that says what is being contained, we have: * altGrp * listApp * listBibl * listChange * listEvent * listForest * gramGrp * interpGrp * joinGrp * linkGrp * locusGrp * measureGrp * modelGrp * listNym * listOrg * listPerson * personGrp /* not really the same sort of animal */ * listPlace * listPrefixDef * rdgGrp * listRef * listRelation * spanGrp * specGrp * specGrpRef * spGrp * surfaceGrp * listTranspose * listWit While I think several of these arguably do not fall into my definitions above, I still think it may be a useful guideline for future names. Unless, of course, we already have a guideline for future names. :-)