Complex sentence: The Illawarra Light Railway Museum Society Ltd. was started in 1973 with railway operations commencing in 1973/74 dedicated to preserving Light Railway history & Illawarra industrial history.
Split into simpler sentences: The Illawarra Light Railway Museum Society Ltd. was started in 1973 with railway operations commencing in 1973/74. The Society is dedicated to preserving Light Railway history & Illawarra industrial history.