user: Question: Name the most revenue for operating income more than 27 for hamburg and debt as % of value less than 0
Columns: ['Rank', 'Team', 'Country', 'Value ($M)', 'Debt as % of value', '% change on year', 'Revenue ($M)', 'Operating income ($m)']
Types: ['real', 'text', 'text', 'real', 'real', 'text', 'real', 'real']
Sample row: [1.0, 'Manchester United', 'England', 1870.0, 54.0, '4', 512.0, 160.0]
SQL:

assistant: SELECT MAX("Revenue ($M)") FROM "Table" WHERE "Operating income ($m)" > 27.0 AND "Team" = 'hamburg' AND "Debt as % of value" < 0.0;