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

### Instruction:
What is the average number of silver medals with more than 6 gold meals and less than 5 bronze medals?

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

### Response:
SELECT AVG Silver FROM table WHERE Gold > 6 AND Bronze < 5