user: Question: Which format is released on May 27, 2009?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Japan', 'April 25, 1984', 'Alfa Records', 'stereo LP', 'ALR-28055']
SQL:

assistant: SELECT "Format" FROM "Table" WHERE "Date" = 'May 27, 2009';