Complex sentence: The Hellingly Hospital Railway was a light railway owned and operated by East Sussex County Council, used for coal and passengers to Hellingly Hospital, a psychiatric hospital near Hailsham, from the London, Brighton and South Coast Railway's Cuckoo Line at Hellingly railway station.
Split into simpler sentences: The Hellingly Hospital Railway was a light railway owned and operated by the East Sussex County Council. It was used to deliver coal and passengers to Hellingly Hospital, a psychiatric hospital near Hailsham, via a spur from the London, Brighton and South Coast Railway's Cuckoo Line at Hellingly railway station.