Input (grade 11): The station name changed again when WesermÃ 1\/4 nde was renamed to Bremerhaven in 1947, and the station became known as Bremerhaven Hauptbahnhof.
Output (grade 12): WesermÃ 1\/4 nde received another name and was called Bremerhaven from 1947, and the station received the new name too and was now called Bremerhaven Hauptbahnhof.