user: Question: In which district is the incumbent Carl Vinson?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Georgia 2', 'J. L. Pilcher', 'Democratic', 1953.0, 'Re-elected', '√ J. L. Pilcher (D) 100.0% Albert Maples (I) 0.01%']
SQL:

assistant: SELECT "District" FROM "Table" WHERE "Incumbent" = 'Carl Vinson';