user: Question: How many countries does honoree Roberto De Vicenzo represent?
Columns: ['Year', 'Player', 'Country', 'Score', 'Margin of victory', 'Winners share ( $ )', 'Honoree(s)']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: [2013.0, 'Matt Kuchar', 'United States', '276 (−12)', '2 strokes', 1160000.0, 'Raymond Floyd']
SQL:

assistant: SELECT "Country" FROM "Table" WHERE "Honoree(s)" = 'Roberto De Vicenzo';