user: Question: What competition had a Rank-Qualifying of 1st and a Ball apparatus?
Columns: ['Year', 'Competition Description', 'Location', 'Apparatus', 'Rank-Final', 'Score-Final', 'Rank-Qualifying', 'Score-Qualifying']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text', 'real']
Sample row: [2012.0, 'Olympics', 'London', 'All-around', '1st', 116.9, '1st', 116.0]
SQL:

assistant: SELECT "Competition Description" FROM "Table" WHERE "Rank-Qualifying" = '1st' AND "Apparatus" = 'Ball';