user: Question: Which college with a position of RB had a pick larger than 6 in round 28?
Columns: ['Round', 'Pick', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 8.0, 8.0, 'Jim Hardy', 'QB', 'Southern California']
SQL:

assistant: SELECT "College" FROM "Table" WHERE "Pick" > 6.0 AND "Position" = 'RB' AND "Round" = 28.0;