Question: What was the nickname of the boxer that lost to Tiger Flowers  in the World Colored Middleweight Championship on 26 November 1926?

Related documents: [0]  [DOC] The World Colored Middleweight Championship was a title awarded to black boxers in the late nineteenth and early twentieth centuries. This was the only recognized middleweight championship available to blacks prior to Tiger Flowers (5 August 1895 - 16 November 1927) winning the world middleweight boxing championship by defeating Harry Greb on 26 November 1926. [END] 
[1]  [DOC] Edward Henry Greb (June 6, 1894 – October 22, 1926) was an American professional boxer. Nicknamed "The Pittsburgh Windmill", he was the American light heavyweight champion from 1922 to 1923 and world middleweight champion from 1923 to 1926. He fought a recorded 298 times in his 13 year-career, which began at around 140 pounds. He fought against the best opposition the talent-rich 1910s and 20s could provide him, frequently squaring off against light heavyweights and even heavyweights. Widely considered one of the best fighters of all time, Greb was named the 7th greatest fighter of the past 80 years by the "Ring Magazine", the 5th greatest fighter of all-time by historian Bert Sugar and ranked as the #1 middleweight and the #2 pound-for-pound fighter of all-time by the International Boxing Research Organization. Statistical boxing website BoxRec lists Greb as the #3 ranked middleweight of all-time and the 8th greatest pound-for-pound fighter ever. [END]  
Answer: The Pittsburgh Windmill
The Pittsburgh Windmill