user: Question: Name the lowest 2008 for guizhou when 2005 is less than 31
Columns: ['Year', '2010', '2009', '2008', '2005', '2000']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Shanghai', 1.0, 2.0, 1.0, 1.0, 1.0]
SQL:

assistant: SELECT MIN("2008") FROM "Table" WHERE "Year" = 'guizhou' AND "2005" < 31.0;