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

### Instruction:
what is the least silver when bronze is 1, rank is less than 2 and gold is more than 4?

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

### Response:
SELECT MIN Silver FROM table WHERE Bronze = 1 AND Rank < 2 AND Gold > 4