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

### Instruction:
When did chang myon (장면) leave office?

### Inputs:
table_name: table, columns: ['President', 'Vice', 'Romanized (Hangul)', 'Took office', 'Left office', 'Political party']

### Response:
SELECT Left office FROM table WHERE Romanized (Hangul) = chang myon (장면)