user: Question: Which locomotive class had 5 items made?
Columns: ['Class', 'Type', 'Fleet numbers', 'Quantity made', 'Manufacturer', 'Date made', 'Date withdrawn']
Types: ['text', 'text', 'text', 'real', 'text', 'real', 'text']
Sample row: ['1', '2-4-0T', '1–3', 3.0, 'Sharp, Stewart & Co.', 1881.0, '1909–1926']
SQL:

assistant: SELECT "Class" FROM "Table" WHERE "Quantity made" = 5.0;