user: Question: What are the highest touchdowns that have net yards greater than 631, with attempts less than 145?
Columns: ['Player', 'Attempts', 'Net yards', 'Yards per attempt', 'Touchdowns']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['Mel Anthony', 145.0, 702.0, 4.8, 9.0]
SQL:

assistant: SELECT MAX("Touchdowns") FROM "Table" WHERE "Net yards" > 631.0 AND "Attempts" < 145.0;