Original sentence: The RIRA was formed in 1997 following a split in the Provisional Irish Republican Army (PIRA), and is an illegal organisation proscribed in the United Kingdom, the Republic of Ireland and the United States
Edited sentence: The RIRA was formed in 1997 following a split in the Provisional Irish Republican Army (PIRA), and is an illegal terrorist organisation proscribed in the United Kingdom, the Republic of Ireland and the United States