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

### Instruction:
what is the frequency when the city of license is belleville?

### Inputs:
table_name: table, columns: ['City of license', 'Identifier', 'Frequency', 'Power', 'Class', 'RECNet']

### Response:
SELECT Frequency FROM table WHERE City of license = belleville