user: Question: What years did the person coach who had more than 31 ties?
Columns: ['Coach', 'Years', 'Wins', 'Losses', 'Ties']
Types: ['text', 'text', 'real', 'real', 'real']
Sample row: ['Murray Armstrong *', '1956 to 1977', 463.0, 215.0, 31.0]
SQL:

assistant: SELECT "Years" FROM "Table" WHERE "Ties" > 31.0;