user: Question: What's the quarterfinals when the rank was Bronze?
Columns: ['Athlete', 'Event', 'Round of 32', 'Round of 16', 'Quarterfinals', 'Semifinals', 'Finals', 'Rank']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Rey Saludar', '52kg', 'Bye', 'Kinley Gyeltshen ( BHU ) W KO R1 1:34', 'Puran Rai ( NEP ) W RSC R1 1:45', 'Katsuaki Susa ( JPN ) W 13-4', 'Yong Chang ( CHN ) W 13-11', 'Gold']
SQL:

assistant: SELECT "Quarterfinals" FROM "Table" WHERE "Rank" = 'Bronze';