Which Tokyo subway lines are JR?

Related questions

1. How do I get from Tokyo to Hakone with JR Pass?
2. How much is a student bus pass for a month?
3. Is romance car covered by JR pass?
4. Which Shinkansen is the fastest?
5. Can I buy a JR Pass in Japan?
6. Should I buy JR Pass?
7. Should I buy a JR Pass?
8. Does JR pass cover subway?
9. Where can I buy Hakone free pass in Shinjuku?
10. How do you get to Mt Fuji with JR Pass?

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15. #which
16. #systems