-- Text
    TQuestMark : Phr -> Text -> Text ;  -- Are you OK? ...
    TExclMark  : Phr -> Text -> Text ;  -- John walks! ...

-- Utt
    UttImpPl  : Pol -> Imp -> Utt;          -- (don't) help yourselves
    UttImpPol : Pol -> Imp -> Utt ;         -- (don't) help (polite)
    ImpPl1    : VP -> Utt ;       -- let's go

-- Cl
    GenericCl : VP -> Cl ;        -- one sleeps


-- VP
    ReflV2   : V2 -> VP ;               -- use itself
    PassV2   : V2 -> VP ;               -- be used
    ProgrVP  : VP -> VP ;        -- be sleeping


-- Verb: coercions
    UseVQ   : VQ -> V2 ;                -- ask (a question)
    UseVS   : VS -> V2 ;                -- know (a secret)

-- how to arrange and extend these
   def_Det   : Det ;   -- the (man)
   indef_Det : Det ;   -- a (man)
   mass_Det  : Det ;   -- (water)

-- Num
    NumNumeral : Numeral -> Num ;    -- fifty-one
    AdNum      : AdN -> Num -> Num ; -- almost 51

-- Ord
    OrdNumeral : Numeral -> Ord ; -- fifty-first

-- Adjective: strange rule, not covered
    UseA2   : A2 -> A ;         -- divisible

-- CAdv (in Adverb)
    AdnCAdv : CAdv -> AdN ;                  -- more (than five)

-- QCl
    QuestIComp  : IComp -> NP -> QCl ;         -- where is John

-- mkIAdv
    PrepIP  : Prep -> IP -> IAdv ;             -- with whom

-- mkIComp
    CompIAdv : IAdv -> IComp ;                 -- where

-- ListX = ListAdv, ListAP, ListNP, ListS
    BaseX
    ConsX

-- RS, QS: all special cases found in S?

-- Pol, Tense, Ant
    PPos, PNeg : Pol ;           -- I sleep/don't sleep
    TPres  : Tense ;                
    ASimul : Ant ;
    TPast, TFut, TCond : Tense ; -- I slept/will sleep/would sleep --# notpresent
    AAnter : Ant ;               -- I have slept                   --# notpresent


------------------------------------------
--- strange cats: 

SC
      mkCN : CN -> SC -> CN ;   -- fact that John smokes, question if he does
      mkCN :  N -> SC -> CN ;   -- fact that John smokes, question if he does
      mkAP : AP -> SC -> AP ;   -- great that she won; uncertain if she did

Slash
      mkQCl : IP -> Slash -> QCl       ;   -- who does John love
      mkRCl : RP -> Slash -> RCl     -- whom John loves
      mkSlash : Slash -> Adv -> Slash ;   -- (whom) he sees tomorrow

VP?
  -- appears in 9 places, of which 2 are recursive

-- Comp: already eliminated

-- DConj /= Conj ?

--------------------------------------------
--- granted special cases

  Text - Phr - Utt 

  S  - Cl   -- Tense Ant Pol
  QS - QCl
  RS - RCl

  VP - V | V2 NP | V3 NP NP ...

  NP - PN | Pron

  CN - N

  AP - A

  Det - Num | Int | Digit

  Num - Numeral | Digit | Int

  ListX - X X

--------

  open ResourceX, ParadigmsX in ...

  ResourceX = ConstructorsX, StructuralX, CatX