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     To provide compatibility with different dialects, a word is
     reserved only if you use one or more of the directives shown
     beside it. Directives correspond to dialects as follows:
 
     74      Word reserved in ANSI'74 standard
     85      Word reserved in ANSI'85 standard
     OS      Word reserved in IBM OS/VS COBOL
     VS(2)   Word reserved in IBM VS COBOL II
     VS(3)   Word reserved in IBM VS COBOL II revision 3, and
             COBOL/370 (unless stated otherwise)
     SA1     Word reserved as part of IBM's SAA definition level 1
     SA2     Word reserved as part of IBM's SAA definition level 2
     XO      Word reserved as part of X/Open definition
     MF(n)   Word reserved when MF(n) directive is used (see below)
     MS(n)   Word reserved when MS(n) directive is used (see below)
     RM      Word reserved when RM directive used
     C370    Word reserved in COBOL/370
     DVS     Word reserved in DOSVS COBOL
 
     There is no ANS74 directive. Words with ANS74 by them are
     reserved words from the ANSI'74 Standard. They are reserved
     regardless of directives.
 
     MF(n) gives compatibility with versions of Micro Focus COBOL
     found in the following products:
 
     MF(1)   LEVEL II COBOL, LEVEL II COBOL/ET and Professional COBOL.
 
     MF(2)   As 1 plus additional features in Micro Focus VS COBOL
             Workbench Version 1.2.
 
     MF(3)   As 2 plus additional features in Micro Focus VS COBOL
             Workbench Versions 1.3 and 2.0, Professional COBOL
             Version 2.0 and Micro Focus Version 1.5.
 
     MF(4)   As 3 plus additional features in Micro Focus COBOL/2
             Version 1.1, Microsoft COBOL Version 3.0 and IBM
             COBOL Version 2.
 
     MF(5)   As 4 plus additional features.
 
     MF(6)   As 5 plus additional features.
 
     MF(7)   As 6 plus additional features.
 
     MS(n) gives compatibility with the versions of Microsoft COBOL
     found in the following products:
 
     MS(1)   Microsoft COBOL Version 1.
 
     MS(2)   Microsoft COBOL Version 2.
                                    -♦-