user: Question: How many games tied for the air force with over 57 years participating?
Columns: ['Mountain West', 'Lost', 'Tied', 'Pct.', 'Years', 'Total Games']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Boise State', 148.0, 2.0, 0.723, 45.0, 538.0]
SQL:

assistant: SELECT COUNT("Tied") FROM "Table" WHERE "Mountain West" = 'air force' AND "Years" > 57.0;