Original sentence: In the past, this Mountain dog was widely used in Bulgaria as a border army watchdog.The Bulgarian Prime Minister Boiko Borisov gave a Karakachan dog, called Buffy to Russian PM Vladimir Putin as a gift in 2010.The Karachan is part of the origin of the Bulgarian Shepherd dog, with which it should not be confused.The Karakachan dog may be a descendant of ancient Balkan domestic dogs, possibly since the time of the Thracians.The Karakachan is a breed of dog that originated in Bulgaria as a mountain livestock guardian dog.The most numerous populations of working purebred livestock guarding Karakachan dogs are found in Bulgaria and the United States
Edited sentence: In the past, this Mountain dog was widely used in Bulgaria as a border army watchdog and in Macedonia as Shepherd and Guardian dog by the villagers.The Karakachan dog may be a descendant of ancient Balkan domestic dogs, possibly since the time of the SlovensThracians.The Karakachan is a breed of dog that originated in Macedonia,Bulgaria as a mountain livestock guardian dog.The most numerous populations of working purebred livestock guarding Karakachan dogs are found in Macedonia, Bulgaria and the United States