user: Question: What is the region 1 (Canada) date associated with a region 2 (UK) date of May 18, 2009?
Columns: ['DVD Name', 'Ep #', 'Region 1 (US)', 'Region 1 (CAN)', 'Region 2 (UK)', 'Region 2 (Germany)', 'Region 4 (Australia)']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['The Complete First Season', '25 (3 discs)', 'November 18, 2003', 'August 11, 2009', 'January 29, 2007', 'November 26, 2004', 'January 11, 2007']
SQL:

assistant: SELECT "Region 1 (CAN)" FROM "Table" WHERE "Region 2 (UK)" = 'May 18, 2009';