user: Question: What Format has the Region of Europe and a Catalog of 74321 45851 2?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Japan', '21 March 1997', 'Arista', 'CD', 'BVCA-725']
SQL:

assistant: SELECT "Format" FROM "Table" WHERE "Region" = 'Europe' AND "Catalog" = '74321 45851 2';