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

### Instruction:
What is the Community Band with a 4BCB Callsign?

### Inputs:
table_name: table, columns: ['Callsign', 'Area served', 'Band', 'Freq currently', 'Purpose']

### Response:
SELECT Band FROM table WHERE Purpose = community AND Callsign = 4bcb