Original sentence: Rollox site is today operated as a rail maintenance facility by Alstom, surplus land was sold off and is now the site of a large Tesco, Costco and Lidl
Edited sentence: In 2007, Railcare Ltd, who also own the Wolverton Railway Works site in Milton Keynes, took over operations at St.Rollox site was operated as a rail maintenance facility by Alstom, surplus land was sold off and is now the site of a large Tesco, Costco and Lidl