Complex sentence: The Cooma Monaro Railway had its origins in a public meeting in 1992, when a group of local Cooma people decided to restore the Cooma Railway Station, which had fallen into disrepair, since the closure of the line beyond Canberra some 4 years before.
Split into simpler sentences: The Cooma Monaro Railway had its origins in a public meeting in 1992, when a group of local Cooma people decided to restore the Cooma Railway Station. This had fallen into disrepair, since the closure of the line beyond Canberra, some 4 years before.