user: Question: How few km 2 does the  area with Nay Pyi Taw as capital cover?
Columns: ['Country', 'Area (km 2 )', 'Population(2012)', 'Density (/km 2 )', 'GDP (nominal), USD (2012)', 'GDP (nominal) per capita, USD (2012)', 'HDI (2012)', 'Capital']
Types: ['text', 'real', 'real', 'real', 'text', 'text', 'text', 'text']
Sample row: ['Brunei', 5765.0, 434320.0, 74.0, '16,852,000,000', '$38,801', '0.885', 'Bandar Seri Begawan']
SQL:

assistant: SELECT MIN("Area (km 2 )") FROM "Table" WHERE "Capital" = 'Nay Pyi Taw';