Complex sentence: Virgin Trains East Coast introduced once per day services to Stirling and via on 14 December 2015, along with one extra service each weekday evening between Hull and Doncaster via Selby.
Split into simpler sentences: Virgin Trains East Coast announced the introduction of once per day services to Stirling and via. These commenced on 14 December 2015, along with one extra service each weekday evening between Hull and Doncaster via Selby.