Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the frequency of the Classic Country Krki-fm booster station?

### Inputs:
table_name: table, columns: ['Frequency', 'Call sign', 'Name', 'Format', 'Owner', 'Target city/ market', 'City of license']

### Response:
SELECT Frequency FROM table WHERE Format = Classic Country KRKI-FM booster