user: Question: What is the highest round for College of nebraska if the Overall is under 190?
Columns: ['Round', 'Pick #', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 1.0, 1.0, 'Peyton Manning', 'Quarterback', 'Tennessee']
SQL:

assistant: SELECT MAX("Round") FROM "Table" WHERE "College" = 'nebraska' AND "Overall" < 190.0;