user: Question: What did ku hyo-jin rank?
Columns: ['Rank', 'Lane', 'Name', 'Nationality', 'Time']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 4.0, 'Kristy Kowal', 'United States', '2:25.46']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Name" = 'ku hyo-jin';