user: Question: What visitor has Tim Duncan (16) as the leading scorer?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Leading scorer', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['3 December 2002', 'Spurs', '75–89', 'Rockets', 'Tim Duncan (25)', '11–8']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Leading scorer" = 'Tim Duncan (16)';