user: Question: What year saw an award in the category of Revelation?
Columns: ['Year', 'Award', 'Category', 'Nominated', 'Result']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['2008', 'CAPIF Award', 'Best Album by a Film/Television Band', 'Teen Angels 2', 'Nominated']
SQL:

assistant: SELECT "Year" FROM "Table" WHERE "Category" = 'Revelation';