sentence: Others remained in Minnesota and the east, in small reservations that still exist, including Sisseton-Wahpeton, Flandreau, and Devils Lake (Spirit Lake or Fort Totten) Reservations in the Dakotas.
modified: Others remained in Minnesota and the east, in small reservations that still exists, including Sisseton-Wahpeton, Flandreau, and Devils Lake (Spirit Lake or Fort Totten) Reservations in the Dakotas.