user: Question: What is Shooter, when Total is "21"?
Columns: ['Shooter', 'Event', 'Rank points', 'Score points', 'Total']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Natalia Paderina ( RUS )', 'WCF 2007', 'Defending champion', 'Defending champion', 'Defending champion']
SQL:

assistant: SELECT "Shooter" FROM "Table" WHERE "Total" = '21';