user: Question: Who was the visitor on January 19, 2008?
Columns: ['Date', 'Visitor', 'Score', 'Home', 'Leading scorer', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['January 2, 2008', 'Nets', '96–95', 'Magic', 'Hedo Türkoğlu (23)', 17519.0, '22–12']
SQL:

assistant: SELECT "Visitor" FROM "Table" WHERE "Date" = 'January 19, 2008';