user: Question: Name the least area for Vas
Columns: ['Name of county', 'County seat', 'Area (km²)', 'Population', 'Population density', 'Towns/ villages']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['Bács-Kiskun', 'Kecskemét', 8445.0, 541584.0, 64.0, 119.0]
SQL:

assistant: SELECT MIN("Area (km²)") FROM "Table" WHERE "Name of county" = 'Vas';