user: Question: What was the Forbers rank (all companies) in 2012 for Cenovus Energy?
Columns: ['April 2013 Cum. Rank', 'Name', 'Rank (all) 2012', 'Rank (all) 2013', '2013 Rank (oil companies)', '2013 rev (bil. USD )', '2013 Profit (mil. USD )', 'Assets (bil. USD )', 'Market cap March 15 (mil. USD )']
Types: ['real', 'text', 'real', 'real', 'text', 'text', 'real', 'text', 'real']
Sample row: [1.0, 'Suncor', 134.0, 142.0, '20 3', '38.8', 2800.0, '76.8', 47300.0]
SQL:

assistant: SELECT "Rank (all) 2012" FROM "Table" WHERE "Name" = 'Cenovus Energy';