user: Question: Round larger than 2, and a Position of Guard involves what college?
Columns: ['Round', 'Pick #', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 1.0, 1.0, 'Andrew Luck', 'Quarterback', 'Stanford']
SQL:

assistant: SELECT "College" FROM "Table" WHERE "Round" > 2.0 AND "Position" = 'Guard';