user: Question: What is the channel with a 2011 rating of 8.5?
Columns: ['Position', 'Channel', 'Launch date', 'Owner', '2005', '2006', '2007', '2008', '2009', '2010', '2011', '2012', '2013 (p)']
Types: ['real', 'text', 'real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Rai 1', 1954.0, 'RAI', '22.86', '22.99', '22.33', '21.80', '20.63', '19.86', '18.1', '18.3', 19.12]
SQL:

assistant: SELECT "Channel" FROM "Table" WHERE "2011" = '8.5';