user: Question: What School or Club team has an overall score of 21?
Columns: ['Round', 'Overall', 'Player', 'Position', 'School/Club Team']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 3.0, 'Mike Phipps', 'Quarterback', 'Purdue']
SQL:

assistant: SELECT "School/Club Team" FROM "Table" WHERE "Overall" = 21.0;