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

### Instruction:
On average, what is the number of silver medals for nations ranking higher than 7, with a total of 6 medals and fewer than 2 bronze medals?

### Inputs:
table_name: table, columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']

### Response:
SELECT AVG Silver FROM table WHERE Rank > 7 AND Total = 6 AND Bronze < 2