Complex sentence: The Saitama Rapid Railway or Saitama Kosokutetsudo (埼玉高速鉄道線) is the continuation of the Namboku Line which starts at Akabane-iwabuchi station in Tokyo and ends at Saitama Misono Station in Saitama.
Split into simpler sentences: The Saitama Rapid Railway or Saitama Kosokutetsudo (埼玉高速鉄道線) is the continuation of the Namboku Line. It starts at Akabane-Iwabuchi station in Tokyo and ends at Saitama Misono Station in Saitama.