user: Question: Which First elected is the highest one that has a Party of Dem, and a District larger than 24, and a Home city/town of Berlin?
Columns: ['District', 'Name', 'Party', 'Home city/town', 'First elected']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'Matthew Ritter', 'Dem', 'Hartford', 2010.0]
SQL:

assistant: SELECT MAX("First elected") FROM "Table" WHERE "Party" = 'Dem' AND "District" > 24.0 AND "Home city/town" = 'Berlin';