Initial Files for Rukiga RGL brough from previous coding before git tracking

src/rukiga/RelativeCgg.gf

@@ -0,0 +1,32 @@
+--# -path=.:../prelude:../abstract:../common
+
+concrete RelativeCgg of Relative = CatCgg ** open ResCgg in {
+
+{-
+--1 Relative clauses and pronouns
+
+abstract Relative = Cat ** {
+
+  fun
+
+-- The simplest way to form a relative clause is from a clause by
+-- a pronoun similar to "such that".
+
+    RelCl    : Cl -> RCl ;            -- such that John loves her
+
+-- The more proper ways are from a verb phrase 
+-- (formed in [``Verb`` Verb.html]) or a sentence 
+-- with a missing noun phrase (formed in [``Sentence`` Sentence.html]).
+
+    RelVP    : RP -> VP -> RCl ;      -- who loves John
+    RelSlash : RP -> ClSlash -> RCl ; -- whom John loves
+
+-- Relative pronouns are formed from an 'identity element' by prefixing
+-- or suffixing (depending on language) prepositional phrases or genitives.
+
+    IdRP  : RP ;                      -- which
+    FunRP : Prep -> NP -> RP -> RP ;  -- the mother of whom
+
+-}
+
+}