The last, like the correctly spelled "Oder-Neisse," is a pair of rivers.
Challenge: Contrive a scenario involving the "Oder-Seine Line." Or, have many Japanese emigrate to the Oder region. The prize: Modernness. I can't offer dinner at a sushi restaurant in Frankfurt an der Oder or Wrocław... but there are links to two well-reviewed ones. (No guarantees of quality or Oder-Nisei ownership.)