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

### Instruction:
What's the downstream rate for the Itu g.992.2 having a version of ADSL?

### Inputs:
table_name: table, columns: ['Version', 'Standard name', 'Common name', 'Downstream rate', 'Upstream rate']

### Response:
SELECT Downstream rate FROM table WHERE Version = adsl AND Standard name = itu g.992.2