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

### Instruction:
Name the least rank subcontinent for bangladesh

### Inputs:
table_name: table, columns: ['Rank Subcontinent', 'Rank Asia', 'Rank World', 'Country', '2011 GDP (PPP) billions of USD']

### Response:
SELECT MIN Rank Subcontinent FROM table WHERE Country = Bangladesh