What is the lowest listed In service for a vessel of xavery czernicki class?
CREATE TABLE table_name_71 (
    in_service INTEGER,
    vessel VARCHAR
)
SELECT MIN(in_service) FROM table_name_71 WHERE vessel = "xavery czernicki class"
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: What is the lowest listed In service for a vessel of xavery czernicki class? ### Input: CREATE TABLE table_name_71 (
    in_service INTEGER,
    vessel VARCHAR
) ### Response: SELECT MIN(in_service) FROM table_name_71 WHERE vessel = "xavery czernicki class"