user: Question: What is the A-side for catalog 902?
Columns: ['Year', 'A-side', 'B-side', 'Catalog number', 'Label']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1947.0, 'Milestones', "Sippin' at Bell's", '934', 'Savoy']
SQL:

assistant: SELECT "A-side" FROM "Table" WHERE "Catalog number" = '902';