The files for GrammarGer and AllGer (but not Construction, Documentation, Markup)

are edited to allow for glued Prep+DefArt, using new categories NP',Det',Quant',
Predet',DAP'.

The previous NP.s : Case => Str*Str allows parsing

   "in dem Meer" = in_Prep ++ (np.s ! Case).p1
   "im Meer"     = in_Prep ++ (np.s ! Case).p2,

but since only one of the strings of (np.s!Case) is used, the tree
contains a metavariable like ?2 (the grammar is "erasing"). (Similarly, if we used
NP.s : Case => Str and NP.s2 : Case => Str.)

To get rid of the metavariables, we have to choose BY A PARAMETER, say

    NP.s : droppedDefArt? => Case => Str

Using np.a = Ag g n p, the preposition can select between preposition
alone or preposition with definite article (glued or not), via

    Prep = {s : GenNum => Str ; s2 :Str ; c : Case ; isPrep : PrepType }

The combination is done in appPrepNP' and appPrep'. This is
independent of the number of glued Prep+DefArt. But LangGer compiles
now in 200s using 30% memory (without SlashV2VNP). Can AppPrepNP' (and
insertObjNP') be simplified?

src/api/CombinatorsGer.gf

@@ -7,9 +7,9 @@ resource CombinatorsGer = Combinators - [appCN, appCNc] with
   (Constructors = ConstructorsGer) ** 
 {
 oper
-appCN : CN -> NP -> NP
+appCN : CN -> NP' -> NP'
        = \cn,x -> mkNP the_Art (PossNP cn x) ;
-appCNc : CN -> [NP] -> NP
-       = \cn,xs -> let np : NP = mkNP and_Conj xs
+appCNc : CN -> [NP'] -> NP'
+       = \cn,xs -> let np : NP' = mkNP and_Conj xs
                    in mkNP the_Art (PossNP cn np) ; 
 }

src/api/ConstructorsGer.gf

@@ -1,3 +1,3 @@
 --# -path=.:alltenses:prelude
 
-resource ConstructorsGer = Constructors with (Grammar = GrammarGer) ;
+resource ConstructorsGer = Constructors' with (Grammar = GrammarGer) ;

src/api/SyntaxGer.gf

@@ -1,4 +1,4 @@
---# -path=.:alltenses:prelude
+--# -path=../abstract:.:alltenses:prelude:
 
-instance SyntaxGer of Syntax = ConstructorsGer, CatGer, StructuralGer, CombinatorsGer ;
+instance SyntaxGer of Syntax' = ConstructorsGer, CatGer, StructuralGer, CombinatorsGer ;