user: Question: What date have highest 0-4-4 Forney locomotive with number larger than 20 and works number larger than 23754?
Columns: ['Number', 'Builder', 'Type', 'Date', 'Works number']
Types: ['real', 'text', 'text', 'real', 'real']
Sample row: [1.0, 'Hinkley Locomotive Works', '0-4-4 Forney locomotive', 1877.0, 1251.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Type" = '0-4-4 Forney locomotive' AND "Number" > 20.0 AND "Works number" > 23754.0;