user: Question: what percentage is brooklyn when manhattan is 15.5%?
Columns: ['2009 general election', 'party', 'Manhattan', 'The Bronx', 'Brooklyn', 'Queens', 'Staten Island', 'Total', '%']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['John C. Liu', 'Democratic', '191,748', '95,795', '203,499', '180,249', '33,242', 704533.0, '72.2%']
SQL:

assistant: SELECT "Brooklyn" FROM "Table" WHERE "Manhattan" = '15.5%';