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      1 
      2 grammar t058rewriteAST83;
      3 options {language=JavaScript;output=AST;}
      4 a : b -> b | c -> c;
      5 b : ID -> ID ;
      6 c : INT -> INT ;
      7 ID : 'a'..'z'+ ;
      8 S : '*' ;
      9 INT : '0'..'9'+;
     10 WS : (' '|'\n') {$channel=HIDDEN;} ;