user: Question:  What party was represented by incumbent Richard Coulter ? 
Columns: ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Pennsylvania 2', 'John Sergeant', 'Anti-Jacksonian', '1816 1827 ( special )', 'Lost re-election Jacksonian gain', 'Joseph Hemphill (J) 54.2% John Sergeant (AJ) 45.8%']
SQL:

assistant: SELECT "Party" FROM "Table" WHERE "Incumbent" = 'Richard Coulter';