How old was the official with Chinese name ?
CREATE TABLE table_25183 (
    "Romanised name" text,
    "Chinese name" text,
    "age at appointment" real,
    "Portfolio" text,
    "Prior occupation" text
)
SELECT "age at appointment" FROM table_25183 WHERE "Chinese name" = '孫明揚'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How old was the official with Chinese name ? ### Input: CREATE TABLE table_25183 (
    "Romanised name" text,
    "Chinese name" text,
    "age at appointment" real,
    "Portfolio" text,
    "Prior occupation" text
) ### Response: SELECT "age at appointment" FROM table_25183 WHERE "Chinese name" = '孫明揚'