Complex sentence: The Green Bus commenced operation of route 22 on 3 March 2014, which serves Birmingham Town Hall, Harborne, Bartley Green, Halesowen, Colley Gate and Merry Hill.
Split into simpler sentences: The Green Bus commenced operation of route 22 on 3 March 2014. It serves Birmingham Town Hall, Harborne, Bartley Green, Halesowen, Colley Gate and Merry Hill.