user: Question: What is the Region of the 1766390 Catalog?
Columns: ['Region', 'Date', 'Label', 'Format', 'Catalog']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['United Kingdom', '28 April 2008', 'Island', 'LP', '1764104']
SQL:

assistant: SELECT "Region" FROM "Table" WHERE "Catalog" = '1766390';