user: Question: What years did the player with the jersey number 33 and played position PF play?
Columns: ['Player', 'Nationality', 'Jersey Number(s)', 'Position', 'Years', 'From']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Kurt Thomas Category:Articles with hCards', 'United States', 44.0, 'PF / C', '2007–2008', 'Texas Christian']
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Jersey Number(s)" = 33.0 AND "Position" = 'PF';