user: Question: How many districts first elected someone in 1808 and had George Smith as the incumbent?
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pennsylvania 4 Plural district with 2 seats', 'Robert Whitehill', 'Democratic-Republican', '1805 (special)', 'Re-elected', 'David Bard (DR) 50.0% Robert Whitehill (DR) 50.0%']
SQL:

assistant: SELECT COUNT("District") FROM "Table" WHERE "First elected" = '1808' AND "Incumbent" = 'George Smith';