Original sentence: County Londonderry or County Derry.Londonderry County Borough Council now called Derry City Council.Londonderry is the name of several places:.The city of Londonderry or Derry
Edited sentence: Londonderry County Borough Council (now called "Derry City Council").Londonderry is the name of several places and related organisations:.The city of Londonderry (or "Derry").The county of Londonderry, County Londonderry (or "County Derry")