user: Question: What is the average Finish, when Team is "buck baker", and when Start is less than 13?
Columns: ['Year', 'Manufacturer', 'Start', 'Finish', 'Team']
Types: ['real', 'text', 'real', 'real', 'text']
Sample row: [1959.0, 'Chevrolet', 13.0, 40.0, 'Buck Baker']
SQL:

assistant: SELECT AVG("Finish") FROM "Table" WHERE "Team" = 'buck baker' AND "Start" < 13.0;