user: Question: What is the smallest possible radius?
Columns: ['Star (Pismis24-#)', 'Spectral type', 'Magnitude (M bol )', 'Temperature (K)', 'Radius (R ☉ )', 'Mass (M ☉ )']
Types: ['text', 'text', 'text', 'real', 'real', 'real']
Sample row: ['1NE', 'O3.5 If *', '−10.0', 42000.0, 17.0, 74.0]
SQL:

assistant: SELECT MIN("Radius (R ☉ )") FROM "Table";