user: Question: How many matches were there in the round with £1,000,000 in prize money?
Columns: ['Round', 'Date', 'Matches', 'Clubs', 'New entries this round', 'Prize money']
Types: ['text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Extra Preliminary Round', '18 August 2007', 171.0, '729 → 558', 'none', '£500']
SQL:

assistant: SELECT "Matches" FROM "Table" WHERE "Prize money" = '£1,000,000';