Complex sentence: Vyachaslau Frantsavich Kebich (,; born June 10,1936) was the first Prime Minister of the Republic of Belarus, serving from 1991 until 1994, having been in the equivalent office of the Byelorussian SSR since 1990.
Split into simpler sentences: Vyachaslau Frantsavich Kebich (,; born June 10,1936) is a political figure from Belarus. He was the first Prime Minister of the Republic of Belarus, serving from 1991 until 1994, having held the equivalent office of the Byelorussian SSR since 1990.