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

### Instruction:
Name the least age 30-39 where age 20-29 is 593

### Inputs:
table_name: table, columns: ['Date of Sterilization', 'Age 10-19', 'Age 20-29', 'Age 30-39', 'Age 40-49', 'Age 50-59', 'Age Unknown', 'Total']

### Response:
SELECT MIN Age 30-39 FROM table WHERE Age 20-29 = 593