(*
 - instead of a generic tag := pos '(' feat* ')' we enumerate all pos so we can state which feat comes with which pos
 - terminals are sometimes indented to indicate hierarchical relationships, but notice that this is just styling and is not interpreted by the EBNF
 - relationships still need to be made explicit in ISOcat (and RELcat)
*)

(* @dcr:datcat 'N'    http://www.isocat.org/datcat/DC-4909 *)
(* @dcr:datcat 'ADJ'  http://www.isocat.org/datcat/DC-4948 *)
(* @dcr:datcat 'WW'   http://www.isocat.org/datcat/DC-4949 *)
(* @dcr:datcat 'TW'   http://www.isocat.org/datcat/DC-4950 *)
(* @dcr:datcat 'VNW'  http://www.isocat.org/datcat/DC-4951 *)
(* @dcr:datcat 'LID'  http://www.isocat.org/datcat/DC-4952 *)
(* @dcr:datcat 'VZ'   http://www.isocat.org/datcat/DC-4953 *)
(* @dcr:datcat 'VG'   http://www.isocat.org/datcat/DC-4954 *)
(* @dcr:datcat 'BW'   http://www.isocat.org/datcat/DC-4955 *)
(* @dcr:datcat 'TSW'  http://www.isocat.org/datcat/DC-4970 *)
(* @dcr:datcat 'SPEC' http://www.isocat.org/datcat/DC-4956 *)
tag = 'N',    '(', NTYPE,    ',', GETAL,   ',', GRAAD,   ',', GENUS,   ',', NAAMVAL, ')'
    | 'ADJ',  '(', POSITIE,  ',', GRAAD,   ',', BUIGING, ',', GETAL-N, ',', NAAMVAL, ')'
    | 'WW',   '(', WVORM,    ',', PVTIJD,  ',', PVAGR,   ',', POSITIE, ',', BUIGING, ',', GETAL-N, ')'
    | 'TW',   '(', NUMTYPE,  ',', POSITIE, ',', GETAL-N, ',', GRAAD,   ',', NAAMVAL, ')'
    | 'VNW',  '(', VWTYPE,   ',', PDTYPE,  ',', NAAMVAL, ',', STATUS,  ',', PERSOON, ',', GETAL,   ',',
                   GENUS,    ',', POSITIE, ',', BUIGING, ',', NPAGR,   ',', GETAL-N, ',', GRAAD,   ')'
    | 'LID',  '(', LWTYPE,   ',', NAAMVAL, ',', NPAGR,   ')'
    | 'VZ',   '(', VZTYPE,   ')'
    | 'VG',   '(', CONJTYPE, ')'
    | 'BW',   '(',           ')'
    | 'TSW',  '(',           ')'
    | 'SPEC', '(', SPECTYPE, ')'
    ;
    
(* @dcr:datcat BUIGING  http://www.isocat.org/datcat/DC-4944 *)
(* @dcr:datcat 'zonder' http://www.isocat.org/datcat/DC-4945 *)
(* @dcr:datcat 'met-e'  http://www.isocat.org/datcat/DC-4946 *)
(* @dcr:datcat 'met-s'  http://www.isocat.org/datcat/DC-4947 *)
BUIGING = 'zonder'
        | 'met-e'
        | 'met-s'
        ;
        
(* @dcr:datcat CONJTYPE         http://www.isocat.org/datcat/DC-5027 *)
(* @dcr:datcat 'nevenschikkend' http://www.isocat.org/datcat/DC-5028 *)
(* @dcr:datcat 'onderschikkend' http://www.isocat.org/datcat/DC-5029 *)

CONJTYPE = 'nevenschikkend'
         | 'onderschikkend'
         ;

(* @dcr:datcat GENUS       http://www.isocat.org/datcat/DC-4926 *)
(* @dcr:datcat 'genus'     http://www.isocat.org/datcat/DC-4927 *)
(* @dcr:datcat 'zijdig'    http://www.isocat.org/datcat/DC-4928 *)
(* @dcr:datcat 'onzijdig'  http://www.isocat.org/datcat/DC-4929 *)
(* @dcr:datcat 'masculien' http://www.isocat.org/datcat/DC-4930 *)
(* @dcr:datcat 'feminien'  http://www.isocat.org/datcat/DC-4931 *)
GENUS = 'genus'
        | 'zijdig'
        | 'onzijdig'
        | 'masculien'
        | 'feminien'
      ;

(* @dcr:datcat GETAL       http://www.isocat.org/datcat/DC-4916 *)
(* @dcr:datcat 'getal'     http://www.isocat.org/datcat/DC-4917 *>
(* @dcr:datcat 'enkelvoud' http://www.isocat.org/datcat/DC-4918 *)
(* @dcr:datcat 'meervoud'  http://www.isocat.org/datcat/DC-4919 *)
GETAL = 'getal'
        | 'enkelvoud'
        | 'meervoud'
      ;
      
(* @dcr:datcat GETAL-N      http://www.isocat.org/datcat/DC-4913 *)
(* @dcr:datcat 'zonder-n'   http://www.isocat.org/datcat/DC-4915 *)
(* @dcr:datcat 'meervoud-n' http://www.isocat.org/datcat/DC-4914 *)
GETAL-N = 'zonder-n'
        | 'meervoud-n'
        ;

(* @dcr:datcat GRAAD         http://www.isocat.org/datcat/DC-4920 *)
(* @dcr:datcat 'basis'       http://www.isocat.org/datcat/DC-4921 *)
(* @dcr:datcat 'comparatief' http://www.isocat.org/datcat/DC-4924 *)
(* @dcr:datcat 'superlatief' http://www.isocat.org/datcat/DC-4925 *)
(* @dcr:datcat 'diminutief'  http://www.isocat.org/datcat/DC-4922 *)
GRAAD = 'basis'
      | 'comparatief'
      | 'superlatief'
      | 'diminutief'
      ;
      
(* @dcr:datcat LWTYPE      http://www.isocat.org/datcat/DC-5020 *)
(* @dcr:datcat 'bepaald'   http://www.isocat.org/datcat/DC-5021 *)
(* @dcr:datcat 'onbepaald' http://www.isocat.org/datcat/DC-5022 *)
LWTYPE = 'bepaald'
       | 'onbepaald'
       ;

(* @dcr:datcat NAAMVAL      http://www.isocat.org/datcat/DC-4932 *)
(* @dcr:datcat 'standaard'  http://www.isocat.org/datcat/DC-4933 *)
(* @dcr:datcat 'nominatief' http://www.isocat.org/datcat/DC-4934 *)
(* @dcr:datcat 'oblique'    http://www.isocat.org/datcat/DC-4935 *)
(* @dcr:datcat 'genitief'   http://www.isocat.org/datcat/DC-4937 *)
(* @dcr:datcat 'datief'     http://www.isocat.org/datcat/DC-4938 *)
(* @dcr:datcat 'bijzonder'  http://www.isocat.org/datcat/DC-4936 *)
NAAMVAL = 'standaard'
          | 'nominatief'
          | 'oblique'
        | 'genitief'
        | 'datief'
        | 'bijzonder'
        ;

(* @dcr:datcat NPAGR   http://www.isocat.org/datcat/DC-5009 *)
(* @dcr:datcat 'agr'   http://www.isocat.org/datcat/DC-5010 *)
(* @dcr:datcat 'evon'  http://www.isocat.org/datcat/DC-5011 *)
(* @dcr:datcat 'rest'  http://www.isocat.org/datcat/DC-5012 *)
(* @dcr:datcat 'evz'   http://www.isocat.org/datcat/DC-5013 *)
(* @dcr:datcat 'mv'    http://www.isocat.org/datcat/DC-5014 *)
(* @dcr:datcat 'agr3'  http://www.isocat.org/datcat/DC-5015 *)
(* @dcr:datcat 'evmo'  http://www.isocat.org/datcat/DC-5016 *)
(* @dcr:datcat 'rest3' http://www.isocat.org/datcat/DC-5017 *)
(* @dcr:datcat 'evf'   http://www.isocat.org/datcat/DC-5018 *)
NPAGR = 'agr'
        | 'evon'
        | 'rest'
          | 'evz'
          | 'mv'
      | 'agr3'
        | 'evmo'
        | 'rest3'
          | 'evf'
(* @dcr:datcat 'mv'    http://www.isocat.org/datcat/DC-5019 *)
          | 'mv'
      ;
      
(* @dcr:datcat NUMTYPE         http://www.isocat.org/datcat/DC-5295 *)
(* @dcr:datcat 'hoofdtelwoord' http://www.isocat.org/datcat/DC-4968 *)
(* @dcr:datcat 'rangtelwoord'  http://www.isocat.org/datcat/DC-4969 *)
NUMTYPE = 'hoofdtelwoord'
        | 'rangtelwoord'
        ;

(* @dcr:datcat NTYPE       http://www.isocat.org/datcat/DC-4908 *)
(* @dcr:datcat 'soortnaam' http://www.isocat.org/datcat/DC-4910 *)
(* @dcr:datcat 'eigennaam' http://www.isocat.org/datcat/DC-4911 *)
NTYPE = 'soortnaam'
      | 'eigennaam'
      ;

(* @dcr:datcat PDTYPE         http://www.isocat.org/datcat/DC-4977 *)
(* @dcr:datcat 'pronomen'     http://www.isocat.org/datcat/DC-4978 *)
(* @dcr:datcat 'adv-pronomen' http://www.isocat.org/datcat/DC-4979 *)
(* @dcr:datcat 'determiner'   http://www.isocat.org/datcat/DC-4980 *)
(* @dcr:datcat 'gradeerbaar'  http://www.isocat.org/datcat/DC-4981 *)
PDTYPE = 'pronomen'
         | 'adv-pronomen'
       | 'determiner'
         | 'gradeerbaar'
       ;

(* @dcr:datcat PERSOON   http://www.isocat.org/datcat/DC-4994 *)
(* @dcr:datcat 'persoon' http://www.isocat.org/datcat/DC-4995 *)
(* @dcr:datcat '1'       http://www.isocat.org/datcat/DC-4996 *)
(* @dcr:datcat '2'       http://www.isocat.org/datcat/DC-4997 *)
(* @dcr:datcat '2v'      http://www.isocat.org/datcat/DC-4998 *)
(* @dcr:datcat '2b'      http://www.isocat.org/datcat/DC-4999 *)
(* @dcr:datcat '3'       http://www.isocat.org/datcat/DC-5000 *)
(* @dcr:datcat '3p'      http://www.isocat.org/datcat/DC-5001 *)
(* @dcr:datcat '3m'      http://www.isocat.org/datcat/DC-5003 *)
(* @dcr:datcat '3v'      http://www.isocat.org/datcat/DC-5002 *)
(* @dcr:datcat '3o'      http://www.isocat.org/datcat/DC-5004 *)
PERSOON = 'persoon'
          | '1'
          | '2'
            | '2v'
            | '2b'
          | '3'
            | '3p'
              | '3m'
              | '3v'
            | '3o'
        ; 

(* @dcr:datcat POSITIE        http://www.isocat.org/datcat/DC-4939 *)
(* @dcr:datcat 'prenominaal'  http://www.isocat.org/datcat/DC-4940 *)
(* @dcr:datcat 'nominaal'     http://www.isocat.org/datcat/DC-4941 *)
(* @dcr:datcat 'postnominaal' http://www.isocat.org/datcat/DC-4942 *)
(* @dcr:datcat 'vrij'         http://www.isocat.org/datcat/DC-4943 *)
POSITIE = 'prenominaal'
        | 'nominaal'
        | 'postnominaal'
        | 'vrij'
        ;

(* @dcr:datcat PVAGR       http://www.isocat.org/datcat/DC-4973 *)
(* @dcr:datcat 'enkelvoud' http://www.isocat.org/datcat/DC-4974 *)
(* @dcr:datcat 'meervoud'  http://www.isocat.org/datcat/DC-4975 *)
(* @dcr:datcat 'met-t'     http://www.isocat.org/datcat/DC-4976 *)
PVAGR = 'enkelvoud'
      | 'meervoud'
      | 'met-t'
      ;

(* @dcr:datcat PVTIJD         http://www.isocat.org/datcat/DC-4964 *)
(* @dcr:datcat 'tegenwoordig' http://www.isocat.org/datcat/DC-4965 *)
(* @dcr:datcat 'verleden'     http://www.isocat.org/datcat/DC-4966 *)
(* @dcr:datcat 'conjunctief'  http://www.isocat.org/datcat/DC-4967 *)
PVTIJD = 'tegenwoordig'
       | 'verleden'
       | 'conjunctief'
       ;

(* @dcr:datcat SPECTYPE         http://www.isocat.org/datcat/DC-5030 *)
(* @dcr:datcat 'afgebroken'     http://www.isocat.org/datcat/DC-5031 *)
(* @dcr:datcat 'onverstaanbaar' http://www.isocat.org/datcat/DC-5032 *)
(* @dcr:datcat 'vreemd'         http://www.isocat.org/datcat/DC-5033 *)
(* @dcr:datcat 'deeleigen'      http://www.isocat.org/datcat/DC-4912 *)
(* @dcr:datcat 'meta'           http://www.isocat.org/datcat/DC-5034 *)
(* @dcr:datcat 'commentaar'     http://www.isocat.org/datcat/DC-5296 *)
(* @dcr:datcat 'achtergrond'    http://www.isocat.org/datcat/DC-5035 *)
(* @dcr:datcat 'afkorting'      http://www.isocat.org/datcat/DC-5036 *)
(* @dcr:datcat 'symbool'        http://www.isocat.org/datcat/DC-5037 *)
SPECTYPE = 'afgebroken'
         | 'onverstaanbaar'
         | 'vreemd'
         | 'deeleigen'
         | 'meta'
         | 'commentaar'
         | 'achtergrond'
         | 'afkorting'
         | 'symbool'
         ;

(* @dcr:datcat STATUS        http://www.isocat.org/datcat/DC-5005 *)
(* @dcr:datcat 'vol'         http://www.isocat.org/datcat/DC-5006 *)
(* @dcr:datcat 'gereduceerd' http://www.isocat.org/datcat/DC-5007 *)
(* @dcr:datcat 'nadruk'      http://www.isocat.org/datcat/DC-5008 *)
STATUS = 'vol'
       | 'gereduceerd'
       | 'nadruk'
       ;

(* @dcr:datcat VWTYPE         http://www.isocat.org/datcat/DC-4982 *)
(* @dcr:datcat 'pr'           http://www.isocat.org/datcat/DC-4983 *)
(* @dcr:datcat 'persoonlijk'  http://www.isocat.org/datcat/DC-4984 *)
(* @dcr:datcat 'reflexief'    http://www.isocat.org/datcat/DC-4985 *)
(* @dcr:datcat 'reciprook'    http://www.isocat.org/datcat/DC-4986 *)
(* @dcr:datcat 'bezittelijk'  http://www.isocat.org/datcat/DC-4987 *)
(* @dcr:datcat 'vb'           http://www.isocat.org/datcat/DC-4988 *)
(* @dcr:datcat 'vragend'      http://www.isocat.org/datcat/DC-4989 *)
(* @dcr:datcat 'betrekkelijk' http://www.isocat.org/datcat/DC-4990 *)
(* @dcr:datcat 'exclamatief'  http://www.isocat.org/datcat/DC-4991 *)
(* @dcr:datcat 'aanwijzend'   http://www.isocat.org/datcat/DC-4992 *)
(* @dcr:datcat 'onbepaald'    http://www.isocat.org/datcat/DC-4993 *)
VWTYPE = 'pr'
         | 'persoonlijk'
         | 'reflexief'
       | 'reciprook'
       | 'bezittelijk'
       | 'vb'
         | 'vragend'
         | 'betrekkelijk'
       | 'exclamatief'
       | 'aanwijzend'
       | 'onbepaald'
       ;

(* @dcr:datcat VZTYPE       http://www.isocat.org/datcat/DC-5023 *)
(* @dcr:datcat 'init'       http://www.isocat.org/datcat/DC-5024 *)
(* @dcr:datcat 'versmolten' http://www.isocat.org/datcat/DC-5026 *)
(* @dcr:datcat 'fin'        http://www.isocat.org/datcat/DC-5025 *)
VZTYPE = 'init'
         | 'versmolten'
       | 'fin'
       ;

(* @dcr:datcat WVORM          http://www.isocat.org/datcat/DC-4957 *)
(* @dcr:datcat 'persoonsvorm' http://www.isocat.org/datcat/DC-4958 *)
(* @dcr:datcat 'buigbaar'     http://www.isocat.org/datcat/DC-4960 *)
(* @dcr:datcat 'infinitief'   http://www.isocat.org/datcat/DC-4961 *)
(* @dcr:datcat 'onvdw'        http://www.isocat.org/datcat/DC-4962 *)
(* @dcr:datcat 'voltdw'       http://www.isocat.org/datcat/DC-4963 *)
WVORM = 'persoonsvorm'
      | 'buigbaar'
        | 'infinitief'
        | 'onvdw'
        | 'voltdw'
      ;