user: Question: For Angelique Kerber who had an RR Rate of less than 0.33, what's the appeared?
Columns: ['Player', 'Result', 'Appeared', 'RR W–L', 'RR W Rate']
Types: ['text', 'text', 'real', 'text', 'real']
Sample row: ['Victoria Azarenka', 'F:11 SF:12 RR:09,10,13', 5.0, '07–08', 0.47]
SQL:

assistant: SELECT "Appeared" FROM "Table" WHERE "RR W Rate" < 0.33 AND "Player" = 'Angelique Kerber';