user: Question: how many studios have the catalog number "CAL03 / 0091037137333"?
Columns: ['Year', 'Title', 'Format', 'Studio', 'Release Date', 'Copyright Information', 'Catalog Number']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1986.0, 'Callanetics: 10 Years Younger In 10 Hours', 'DVD', 'Callan Productions Corp', 'March 15, 2013', 'Callan Productions Corp.', 'CAL01 / 0091037137319']
SQL:

assistant: SELECT COUNT("Studio") FROM "Table" WHERE "Catalog Number" = 'CAL03 / 0091037137333';