user: ### NOW ANSWER:
Question: What was the maximum speed of the car with 1.556 cc capacity?
Columns: ['Type', 'Construction period', 'Cylinder', 'Capacity', 'Power', 'Vmax']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['PS (kW; hp)', '1901–1902', 'straight-2', '1.527 cc', '18 PS (13,2 kW)', 'km/h (mph)']
SQL:

assistant: SELECT "Vmax" FROM "Table" WHERE "Capacity" = '1.556 cc';