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

### Instruction:
What's the sum of ERP W with a Frequency MHz that larger than 97.7?

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

### Response:
SELECT COUNT ERP W FROM table WHERE Frequency MHz > 97.7