user: ### NOW ANSWER:
Question: Tell me the sum of yards for jason campbell and long less than 23
Columns: ['Player', 'Att.', 'Yards', 'Avg.', 'Long', 'FumL']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Clinton Portis', 342.0, 1487.0, 4.3, 31.0, 3.0]
SQL:

assistant: SELECT SUM("Yards") FROM "Table" WHERE "Player" = 'jason campbell' AND "Long" < 23.0;