user: Question: What is  the cat no for the label Mute and the Standard CD format?
Columns: ['Release format', 'Country', 'Label(s)', 'Cat. no.', 'Release date']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Standard CD', 'Europe', 'Mute', 'CD STUMM 288', '22 October 2007']
SQL:

assistant: SELECT "Cat. no." FROM "Table" WHERE "Label(s)" = 'Mute' AND "Release format" = 'Standard CD';