Complex sentence: Services were also operated by MkII carriages hauled by Class 47s and 50s; later these were transferred to Network SouthEast and replaced by Class 165'Thames Turbo' DMUs.
Split into simpler sentences: Services were also operated by MkII carriages hauled by Class 47s and 50s. These trains were transferred to Network SouthEast and replaced by Class 165'Thames Turbo' DMUs.