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

### Instruction:
What city of license has an ERP W smaller than 500, Class A, and Frequency MHz larger than 89.7?

### Inputs:
table_name: table, columns: ['Call sign', 'Frequency MHz', 'City of license', 'ERP W', 'Height m ( ft )', 'Class', 'FCC info']

### Response:
SELECT City of license FROM table WHERE ERP W < 500 AND Class = a AND Frequency MHz > 89.7