Complex sentence: The building housing Zimbabwe's Central Intelligence Organization bore the name of Sir Charles until April 1985, when it was changed by the office of Prime Minister Robert Mugabe to that of Chaminuka, an ancestral spirit invoked by guerrillas opposing the government of Ian Smith.
Split into simpler sentences: The building housing Zimbabwe's Central Intelligence Organization bore the name of Sir Charles. However, in April 1985, it was changed by the office of Prime Minister Robert Mugabe to that of Chaminuka, an ancestral spirit invoked by guerrillas opposing the government of Ian Smith.