which locations have the reactor type rbmk-1000?
chernobyl-1, chernobyl-2, chernobyl-3, chernobyl-4, chernobyl-5, chernobyl-6, kursk-1, kursk-2, kursk-3, kursk-4, kursk-6, leningrad-1, leningrad-2, leningrad-3, leningrad-4, smolensk-1, smolensk-2, smolensk-3, smolensk-4
of these, which have a net capacity of 925?
chernobyl-2, chernobyl-3, chernobyl-4, kursk-1, kursk-2, kursk-3, kursk-4, kursk-6, leningrad-1, leningrad-2, leningrad-3, leningrad-4, smolensk-1, smolensk-2, smolensk-3, smolensk-4
of these, which are still operational?
kursk-1, kursk-2, leningrad-1, leningrad-2, leningrad-3, leningrad-4, smolensk-1, smolensk-3
from the remaining, which is scheduled to be operational the longest?
leningrad-4