Complex sentence: DM/D electric multiple units first ran on the line on 5 September 1949, and the last of this class were withdrawn from service after the arrival of the FT/FP class (Matangi) multiple units in 2011.
Split into simpler sentences: DM/D electric multiple units first ran on the line on 5 September 1949. They were withdrawn from service after the arrival of the FT/FP class (Matangi) multiple units in 2011.