Question: what are jr lines in tokyo?
Answer: Yamanote Line. Circle line that connects all major city centers. Keihin-Tohoku Line. Runs parallel to the Yamanote Line on the eastern half of the circle. Chuo/Sobu Line (Local) Runs across the Yamanote circle (local slow service). Chuo Line (Rapid) ...  Saikyo Line. ...  Shinkansen.