Task: Question Answering
Input (English): Passage: All assets of the Arena Football League were put up for auction. On November 11, 2009, the new league announced its intention to purchase the entire assets of the former AFL; the assets included the team names and logos of all but one of the former AFL and af2 teams. The lone exception was that of the Dallas Desperados; Desperados owner Jerry Jones had purposely designed the Desperados' properties around those of the Dallas Cowboys, making the two inseparable. The auction occurred on November 25, 2009. The assets were awarded to Arena Football 1 on December 7, 2009, with a winning bid of $6.1 million. Question: When was an auction announced for the Arena Football League's assets?
Output (English): November 11, 2009