sentences:  The electric South Western Main Line runs through the south of the county, at Bournemouth, Poole, Dorchester and the terminus at Weymouth, and was part of the London and South Western Railway (later Southern Railway).Additionally, a secondary line, the Heart of Wessex Line runs from Weymouth to Bristol, via Yeovil and Bath, in Somerset.This line was part of the Wilts, Somerset and Weymouth Railway (later Great Western Railway).