user: Question: What is the location where enrollment is 266 and and the county is 18 Delaware?
Columns: ['School', 'Location', 'Mascot', 'Enrollment', 'IHSAA Class', '# / County']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Blue River Valley', 'Mt. Summit', 'Vikings', 229.0, 'A', '33 Henry']
SQL:

assistant: SELECT "Location" FROM "Table" WHERE "# / County" = '18 Delaware' AND "Enrollment" = 266.0;