When yidu is the commandery what is the lowest number of countries?
CREATE TABLE table_278229_1 (
    no_of_counties INTEGER,
    commandery VARCHAR
)
SELECT MIN(no_of_counties) FROM table_278229_1 WHERE commandery = "Yidu 宜都"
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: When yidu is the commandery what is the lowest number of countries? ### Input: CREATE TABLE table_278229_1 (
    no_of_counties INTEGER,
    commandery VARCHAR
) ### Response: SELECT MIN(no_of_counties) FROM table_278229_1 WHERE commandery = "Yidu 宜都"