user: Question: Which season had fewer than 13 episodes and aired its season finale on february 20, 2011?
Columns: ['Season', 'Episodes', 'Season Premiere', 'Season Finale', 'DVD Release Date']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 6.0, 'August 17, 2006', 'September 21, 2006', 'August 28, 2007']
SQL:

assistant: SELECT "Season" FROM "Table" WHERE "Episodes" < 13.0 AND "Season Finale" = 'february 20, 2011';