Complex sentence: Herbert Augustus Blaize (February 26 1918--December 19 1989) was the chief minister of Grenada from 1960 until 1961 and from 1962 until 1967 and the prime minister of Grenada from 1984 until his death.
Split into simpler sentences: Herbert Augustus Blaize (February 26 1918--December 19 1989) was a Grenadian politician. He served as the Chief Minister of Grenada from 1960 until 1961 and from 1962 until 1967, and later he was Prime Minister of Grenada from 1984 until his death.