user: Question: Which Distance has an Event of Breaststroke, and a Location of Beijing, CHN?
Columns: ['Distance', 'Event', 'Time', 'Meet', 'Location']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['200m', 'Breaststroke', '2:20.22', '2008 Summer Olympics', 'Beijing, CHN']
SQL:

assistant: SELECT "Distance" FROM "Table" WHERE "Event" = 'Breaststroke' AND "Location" = 'Beijing, CHN';