user: Question: What year was Wilfred Lau separated because Capital stopped recording music?
Columns: ['English name', 'Chinese name', 'Year signed', 'Year separated', 'Reason for separation']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['Bill Chan', '石修', 1971.0, '[Unknown]', '†']
SQL:

assistant: SELECT "Year separated" FROM "Table" WHERE "Reason for separation" = 'Capital stopped recording music' AND "English name" = 'Wilfred Lau';