anchor.diff:    $result = begin + " " + block.toString() + " " + end;
   }
                                 : terminatorDefinitionBegin { begin = $terminatorDefinitionBegin.text; }
  -                                (terminatorServiceDeclaration { addToChunk( services, $terminatorServiceDeclaration.text ); }
  -                                | terminatorFunctionDeclaration { addToChunk( services, $terminatorFunctionDeclaration.text ); } )*
  +                                (terminatorServiceDeclaration { addToChunk( services, $terminatorServiceDeclaration.result ); }
  +                                | terminatorFunctionDeclaration { addToChunk( services, $terminatorFunctionDeclaration.result ); } )*
                                   terminatorDefinitionEnd { end = $terminatorDefinitionEnd.text; }
                                 ;
   
  
positive.code:   ArrayList<String> object_decl = new ArrayList<String>();
    ArrayList<String> type_decl = new ArrayList<String>();
    ArrayList<String> types = new ArrayList<String>();
    ArrayList<String> services = new ArrayList<String>();
    ArrayList<String> terminators = new ArrayList<String>();
    ArrayList<String> relationships = new ArrayList<String>();
  
negative.code:                               : objectDefinitionBegin { begin = $objectDefinitionBegin.text; }
                                  (attributeDefinition { addToChunk( attrs, $attributeDefinition.text ); }
                                  | identifierDefinition { addToChunk( ids, $identifierDefinition.text ); }
                                  | objectServiceDeclaration { addToChunk( services, $objectServiceDeclaration.result ); }
                                  | objectFunctionDeclaration { addToChunk( services, $objectFunctionDeclaration.result ); }
                                  | eventDefinition { addToChunk( events, $eventDefinition.text ); }
                                  | stateDeclaration { addToChunk( states, $stateDeclaration.text ); }
                                  | transitionTable { addToChunk( trans_tables, $transitionTable.result ); })*
  