user: Question: What is the 2nd party for a Conservative 1st party with a 1st member Charles Moody in the election of 1851 by-election?
Columns: ['Election', '1st Member', '1st Party', '2nd Member', '2nd Party']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1832', 'Edward Ayshford Sanford', 'Whig', 'Charles Kemeys-Tynte', 'Whig']
SQL:

assistant: SELECT "2nd Party" FROM "Table" WHERE "1st Party" = 'Conservative' AND "1st Member" = 'Charles Moody' AND "Election" = '1851 by-election';