user: Question: If the playoff berth is 17, what is the AFC championship number?
Columns: ['Team', 'Division Titles', 'Playoff Berths', 'AFL Titles', 'AFC Championships', 'Super Bowl Championships']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['New England Patriots', 15.0, 19.0, 0.0, 7.0, 3.0]
SQL:

assistant: SELECT "AFC Championships" FROM "Table" WHERE "Playoff Berths" = 17.0;