user: Question: who was running where the winner is Daniel Montgomery
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pennsylvania 5', 'Daniel Montgomery', 'Democratic-Republican', '1806', 'Retired Democratic-Republican hold', 'George Smith (DR) 82.3% John Bull (F) 17.3%']
SQL:

assistant: SELECT "Candidates" FROM "Table" WHERE "Incumbent" = 'Daniel Montgomery';