Complex sentence: Margaret Scott was appointed an Officer of the Order of the British Empire (OBE) in 1976, Dame Commander (DBE) in 1981 and Companion of the Order of Australia (AC) in 2005.
Split into simpler sentences: Margaret Scott was appointed an Officer of the Officer of the Order of the British Empire (OBE) in 1976, and Dame Commander (DBE) in 1981. She was appointed a Companion of the Order of Australia (AC) in 2005.