user: Question: Which nationality's pick was 415?
Columns: ['Round', 'Pick', 'Player', 'Nationality', 'School']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1', '16 (for Frank Catalanotto )', 'Kevin Ahrens (SS)', 'United States', 'Memorial High School']
SQL:

assistant: SELECT "Nationality" FROM "Table" WHERE "Pick" = '415';