user: Question: Which district is associated with the incumbent Carl Vinson?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Georgia 2', 'Edward E. Cox', 'Democratic', 1924.0, 'Re-elected', 'Edward E. Cox (D) Unopposed']
SQL:

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