Complex sentence: The Cheadle Railway, was a small local company, constructed with NSR's backing, built at great cost over a period of twelve years a short line from Cresswell to Cheadle.
Split into simpler sentences: The Cheadle Railway, was a small local company, constructed with NSR's backing, built at great cost over a period of twelve years. It was a short line from Cresswell to Cheadle.