user: Question: Which Franchise has a Percentage under 0.707, a Year larger than 1931, and the Finish was Won 1998 World Series?
Columns: ['Year', 'Franchise', 'League', 'Percentage', 'Finish']
Types: ['real', 'text', 'text', 'real', 'text']
Sample row: [1906.0, 'Chicago Cubs', 'NL', 0.763, 'Lost 1906 World Series']
SQL:

assistant: SELECT "Franchise" FROM "Table" WHERE "Percentage" < 0.707 AND "Year" > 1931.0 AND "Finish" = 'Won 1998 World Series';