user: Question: Which Category in Black has a Brown of 6,54%?
Columns: ['Category', 'Frequency', 'White', 'Brown', 'Black', 'Amerindian', 'Yellow', 'Total', 'difference between White and Black']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['branca (White)', '54.28%', '98,96%', '0,73%', '0,11%', '0,07%', '0,14%', '100,00%', 9885.0]
SQL:

assistant: SELECT "Black" FROM "Table" WHERE "Brown" = '6,54%';