user: Question: What is the minimum number for the half marathon (womens)?
Columns: ['Country', 'Total', 'Marathon (mens)', 'Marathon (womens)', 'Half Marathon (mens)', 'Half Marathon (womens)']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Latvia', 27.0, 10.0, 8.0, 4.0, 5.0]
SQL:

assistant: SELECT MIN("Half Marathon (womens)") FROM "Table";