Original sentence: Blagoevgrad Province of Bulgaria, also known as Pirin Macedonia.the Republic of Macedonia, a current state, also referred to as the former Yugoslav Republic of Macedonia (FYROM).the Socialist Republic of Macedonia (1946-1991), a federal unit of Yugoslavia and predecessor to the current Republic of Macedonia
Edited sentence: The Blagoevgrad Province of Bulgaria which is also unofficially known as Pirin Macedonia.The Republic of Macedonia, a current state, also referred to as the former Yugoslav Republic of Macedonia (FYROM).The Socialist Republic of Macedonia (1946-1991), a federal unit of Yugoslavia and predecessor to the current Republic of Macedonia