user: Question: How many seasons are there with Formula Holden?
Columns: ['Series', 'Seasons', 'Races', 'Poles', 'Wins', 'Podiums (Non-win)', 'Point Finishes (Non-podium)', 'Teams', 'Total Points', 'Championships', 'Best Finish (Championship)']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: ['Formula Ford', 2.0, 28.0, 0.0, 4.0, 5.0, 9.0, 1.0, 304.0, 0.0, '2nd ( 2001 )']
SQL:

assistant: SELECT "Seasons" FROM "Table" WHERE "Series" = 'Formula Holden';