user: Question: what is the lowest points scored by a player who blocked 21 times
Columns: ['Player', 'Minutes', 'Field Goals', 'Rebounds', 'Assists', 'Steals', 'Blocks', 'Points']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Sheri Sam', 904.0, 147.0, 132.0, 66.0, 35.0, 5.0, 396.0]
SQL:

assistant: SELECT MIN("Points") FROM "Table" WHERE "Blocks" = 21.0;