user: Question: Which player had 50 balls?
Columns: ['Rank', 'Player', 'Team', 'Runs', 'Balls', 'Year', 'Against']
Types: ['real', 'text', 'text', 'text', 'real', 'real', 'text']
Sample row: [1.0, "Kevin O'Brien", 'Gloucestershire Gladiators', '119', 52.0, 2011.0, 'Middlesex Panthers']
SQL:

assistant: SELECT "Player" FROM "Table" WHERE "Balls" = 50.0;