user: Question: What is the class of the locomotive with a wheel arrangement of 4-6-0 and a quantity made of 14?
Columns: ['Class', 'Wheel arrangement', 'Fleet number(s)', 'Manufacturer', 'Year made', 'Quantity made', 'Quantity preserved', 'Year(s) withdrawn']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)', 'Robert W. Urie (1912–1922)']
SQL:

assistant: SELECT "Class" FROM "Table" WHERE "Wheel arrangement" = '4-6-0' AND "Quantity made" = '14';