Complex sentence: The town was originally served by a loop line from the line mentioned above, opened by the Great Northern Railway; there were two stations on the loop: "Pudsey Lowtown" and "Pudsey Greenside" located at either end of the town.
Split into simpler sentences: The town was originally served by a loop line from the line mentioned above, opened by the Great Northern Railway. There were two stations on the loop: "Pudsey Lowtown" and "Pudsey Greenside" located at either end of the town.