user: Question: Which Frequency has a Call sign of KCSE?
Columns: ['Call sign', 'Frequency', 'City of license', 'Watts', 'Class']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['KANZ', '91.1 FM', 'Garden City, Kansas', 100000.0, 'C1']
SQL:

assistant: SELECT "Frequency" FROM "Table" WHERE "Call sign" = 'KCSE';