anchor.diff:  
   
                                 :^( OBJECT_SERVICE_DEFINITION
  +                                   SERVICE_TYPE
                                      serviceVisibility
                                      INSTANCE?
                                      fullObjectReference
  
positive.code: projectTerminatorServiceDefinition//[ProjectTerminatorService service]
  //scope NameScope;
                                : ^( TERMINATOR_SERVICE_DEFINITION
                                     serviceVisibility
                                     domainReference
                                     terminatorName
  
negative.code: 
  
                                : ^( TERMINATOR_SERVICE_DEFINITION
                                     SERVICE_TYPE
                                     serviceVisibility
                                     domainReference
                                     terminatorName
  