user: Question: What's the category for the Tween Academy: Class of 2012 nomination?
Columns: ['Year', 'Award giving body', 'Category', 'Nominated for', 'Result']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2013.0, '1st Sunday All Stars Awards', 'Stand Out Season Performer', 'None', 'Nominated']
SQL:

assistant: SELECT "Category" FROM "Table" WHERE "Nominated for" = 'Tween Academy: Class of 2012';