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

### Instruction:
What is the portfolio attachment of the Undersecretary appointed at age 48 with a Chinese name of 梁鳳儀?

### Inputs:
table_name: table, columns: ['Romanised name', 'Chinese name', 'age at appointment', 'Foreign nationality', 'Portfolio attachment', 'Govt salary']

### Response:
SELECT Portfolio attachment FROM table WHERE age at appointment = 48 AND Chinese name = 梁鳳儀