user: Question: What is listed under L when the ends won is 21?
Columns: ['Skip (Club)', 'W', 'L', 'PF', 'PA', 'Ends Won', 'Ends Lost', 'Blank Ends', 'Stolen Ends']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Brad Gushue (Bally Haly)', 5.0, 0.0, 35.0, 15.0, 22.0, 12.0, 9.0, 6.0]
SQL:

assistant: SELECT "L" FROM "Table" WHERE "Ends Won" = 21.0;