user: Question: Who is the visitor team of the game with Andrew Bogut (21) as the leading scorer?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Leading scorer', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['2 February 2008', 'Rockets', '91–83', 'Bucks', 'Andrew Bogut (21)', '18–30']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Leading scorer" = 'Andrew Bogut (21)';