 Complete the following phrase:  Mikalay Dzyemyantsyey , , Nikolay Dementey; 25 May 1930  10 July 2018 was a Soviet and Belarusian politician who was chairman of the Belarusian Supreme Soviet. A former member of the Communist Party of Belarus, he was replaced by Stanislav Shushkevich as chairman because he sided with the leaders of the 