Complex sentence: Rosemary Follett AO (born 27 March 1948), Australian politician, was the first Chief Minister of the Australian Capital Territory--the first woman to become head of government in an Australian state or territory.
Split into simpler sentences: Rosemary Follett AO (born 27 March 1948), Australian politician, was the first Chief Minister of the Australian Capital Territory. She was the first woman to become head of government in an Australian state or territory.