user: Question: Name the candidates for New York 21
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['New York 1', 'Silas Wood', 'Anti-Jacksonian', '1818', 'Lost re-election Jacksonian gain', 'James Lent (J) 52.3% Silas Wood (AJ) 47.7%']
SQL:

assistant: SELECT "Candidates" FROM "Table" WHERE "District" = 'New York 21';