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

### Instruction:
What is the size of Itwara central forest reserve?

### Inputs:
table_name: table, columns: ['Central Forest Reserve', 'Size in km²', 'Total plant species', 'Tree species', 'Endemic', 'Threatened (CR,VU,EN)']

### Response:
SELECT MIN Size in km² FROM table WHERE Central Forest Reserve = Itwara