Complex sentence: State Mine was a mining railway station on the Wonthaggi line along the Bass Coast, Victoria, the station operated until the lines closure in 1978 when mining coal mining activities in the area were reducing.
Split into simpler sentences: State Mine was a mining railway station on the Wonthaggi line along the Bass Coast, Victoria. The station operated until the line's closure in 1978 when mining coal mining activities in the area were reducing.