user: Question: what is the county when the year left is 1998?
Columns: ['School', 'Location', 'Mascot', 'County', 'Year Joined', 'Previous Conference', 'Year Left']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Huntington North *', 'Huntington', 'Vikings', '35 Huntington', '1932', 'Independents', '1974']
SQL:

assistant: SELECT "County" FROM "Table" WHERE "Year Left" = '1998';