user: Question: What is the total tenure time of Warren Magnuson, who had an uninterrupted rank larger than 4 and a total tenure rank larger than 9?
Columns: ['Total tenure rank', 'Uninterrupted rank', 'Name', 'State represented', 'Total tenure time', 'Uninterrupted time']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 1.0, 'Robert Byrd', 'West Virginia', '51 years, 176 days', '51 years, 176 days']
SQL:

assistant: SELECT "Total tenure time" FROM "Table" WHERE "Uninterrupted rank" > 4.0 AND "Total tenure rank" > 9.0 AND "Name" = 'Warren Magnuson';