code: public final void mDOCUMENT_KEYWORD() throws RecognitionException {
          try {
              int _type = DOCUMENT_KEYWORD;
              int _channel = DEFAULT_TOKEN_CHANNEL;
              // BELScript.g:261:17: ( 'DOCUMENT' )
              // BELScript.g:262:5: 'DOCUMENT'
              {
              match("DOCUMENT"); 
  
  
              }
  
              state.type = _type;
              state.channel = _channel;
          }
          finally {
          }
      }
docs: $ANTLR start "DOCUMENT_KEYWORD"