user: Question: Who was the cover model when the issue's pictorials was PMOY - Sara Jean Underwood?
Columns: ['Date', 'Cover model', 'Centerfold model', 'Interview subject', '20 Questions', 'Pictorials']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['1-07', 'Pamela Anderson', 'Jayde Nicole', 'T. Boone Pickens', 'Ellen Pompeo', 'Pamela Anderson']
SQL:

assistant: SELECT "Cover model" FROM "Table" WHERE "Pictorials" = 'PMOY - Sara Jean Underwood';