Complex sentence: This service was the second service to use Double-Decker Air Conditioned buses in 1993 with a total of 11 units (SBS9010M-SBS9021G).
Split into simpler sentences: This service was the second service to use Double-Decker Air Conditioned buses in 1993. It had a total of 11 units (SBS9010M-SBS9021G).