user: Question: Which Format has a Region of United States, and a Catalog of KEM 072?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Europe', 'March 31, 2008', 'Kemado Records', 'CD album', 'KEM 073']
SQL:

assistant: SELECT "Format" FROM "Table" WHERE "Region" = 'United States' AND "Catalog" = 'KEM 072';