US Championships 1939

Target entity: US Championships 1939
Context triple: [Robert Larimore Riggs, grandSlamSinglesTitles, US Championships 1939]

• A. U.S. Championships 1937
  The U.S. Championships 1937 was a major tennis tournament, precursor to the modern US Open, in which German player Gottfried von Cramm reached the men's singles final.
• B. U.S. Nationals
  U.S. Nationals is the premier annual figure skating competition in the United States that determines national champions and often helps select skaters for international events.
• C. New York 1927 chess tournament
  The New York 1927 chess tournament was a major international event featuring many of the world’s leading players of the era, including Aron Nimzowitsch, and is remembered as one of the strongest tournaments of the early 20th century.
• D. French Championships
  The French Championships, now known as the French Open, is one of tennis’s four Grand Slam tournaments, played on clay courts at Roland Garros in Paris.
• E. 1949 British Amateur
  The 1949 British Amateur was a prestigious amateur golf championship held in the United Kingdom, regarded as one of the most important events in amateur golf.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: US Championships 1939
Target entity description: US Championships 1939 was the edition of the American national tennis championships in which Bobby Riggs won the men’s singles title, a precursor to today’s US Open.

• A. U.S. Championships 1937
  The U.S. Championships 1937 was a major tennis tournament, precursor to the modern US Open, in which German player Gottfried von Cramm reached the men's singles final.
• B. U.S. Nationals
  U.S. Nationals is the premier annual figure skating competition in the United States that determines national champions and often helps select skaters for international events.
• C. New York 1927 chess tournament
  The New York 1927 chess tournament was a major international event featuring many of the world’s leading players of the era, including Aron Nimzowitsch, and is remembered as one of the strongest tournaments of the early 20th century.
• D. French Championships
  The French Championships, now known as the French Open, is one of tennis’s four Grand Slam tournaments, played on clay courts at Roland Garros in Paris.
• E. 1949 British Amateur
  The 1949 British Amateur was a prestigious amateur golf championship held in the United Kingdom, regarded as one of the most important events in amateur golf.
• F. None of above. chosen