Original sentence: (The Democratic Unionist Party appointed two ministers but did not sit in the committee in protest at the presence of Sinn Féin.Adams was generally seen as a spokesman for the Republican movement, which encompassed Sinn Féin and the paramilitary Provisional IRA, an illegal organisation in the United Kingdom and the Republic of Ireland widely blamed for the deaths of over one thousand people during The Troubles.From the late 1980s Adams was central figure in the Northern Ireland peace process, initially in contacts with then SDLP leader John Hume and then with other parties and the Irish and British governments.The Provisional IRA had now indicated that its "war" is over and that the republican movement is now exclusively committed to democratic politics.Under Adams Sinn Féin changed policy moved to take seats in the Northern Ireland Assembly and Oireachtas Éireann, and has participated in the power-sharing executive committee (cabinet) in Northern Ireland, where it shared powers with the Ulster Unionist Party and the SDLP
Edited sentence: Having been seen for many years a leading spokesman for the Provisional IRA through his role as leader of the closely aligned Sinn Fein political party, Adams has recently become a central figure in the Northern Ireland peace process.He has also been instrumental in moving his party towards constitutional politics