Complex sentence: Two more City Line branches (Liverpool to Wigan via St Helens and Liverpool to Newton le Willows) have been electrified and now operate Northern Electric services however work to fully complete the project is still ongoing.
Split into simpler sentences: Two more City Line branches (Liverpool to Wigan via St Helens and Liverpool to Newton le Willows) have been electrified and now operate Northern Electric services. However, work to fully complete the project is still ongoing.