Complex sentence: The Cairns-Mulgrave Tramway was a private tram line from Cairns to the Mulgrave River was built until 1897 to serve the Mulgrave Central Sugar Mill, built in 1895.
Split into simpler sentences: The Cairns-Mulgrave Tramway was a private tram line from Cairns to the Mulgrave River. It was built until 1897 to serve the Mulgrave Central Sugar Mill, built in 1895.