Complex sentence: The Middleton Electric Traction Company Ltd., a subsidiary company of the British Electric Traction group, operated an electric tramway service in Middleton between 1902 and 1925 Great British Tramway Networks.
Split into simpler sentences: The Middleton Electric Traction Company Ltd., operated an electric tramway service in Middleton between 1902 and 1925. It was a subsidiary company of the British Electric Traction group, Great British Tramway Networks.