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

### Instruction:
What is the sum of rank when total is 3 and the nation is Australia?

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

### Response:
SELECT SUM Rank FROM table WHERE Total = 3 AND Nation = australia