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

### Instruction:
What is the total number of silver medals for karate athletes with over 2 golds?

### Inputs:
table_name: table, columns: ['Athlete', 'Sport', 'Asian Games', 'Gold', 'Silver', 'Bronze', 'Total']

### Response:
SELECT COUNT Silver FROM table WHERE Sport = karate AND Gold > 2