anchor.diff:  sameLineStatement           
       :   fileStatement 
       |   errorHandlingStatement
  -    |   dataManipulationStatmeent
  +    |   dataManipulationStatement
       |   controlStatementExceptMultilineIf
       ;
   
  
positive.code: 
  LETTER                  :    [A-Za-z];
  
  // End of statement.
  EOS                     :   NL | ':';
  
  
negative.code: // 5.4.1 Statement Blocks
  statementBlock          :   (blockStatement EOS)*;
  blockStatement          
      :   statementLabelDefinition 
      |   statement;  //|   remStatement 
  statement               
      :   controlStatement
      |   dataManipulationStatement
      |   errorHandlingStatement
      |   fileStatement
      ;
  
  // 5.4.1.1 Statement Labels
  statementLabelDefinition    :   identifier ':' | lineNumberLabel ':'?;
  