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

### Instruction:
What is the Romanization of the Mandarin word whose Rōmaji is ūroncha

### Inputs:
table_name: table, columns: ['Japanese', 'Rōmaji', 'Meaning', 'Chinese', 'Romanization', 'Source language']

### Response:
SELECT Romanization FROM table WHERE Source language = mandarin AND Rōmaji = ūroncha