What owner or owners have an operational description?
CREATE TABLE table_55212 (
    "Number & Name" text,
    "Description" text,
    "Livery" text,
    "Owner(s)" text,
    "Date" text
)
SELECT "Owner(s)" FROM table_55212 WHERE "Description" = 'operational'
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 owner or owners have an operational description? ### Input: CREATE TABLE table_55212 (
    "Number & Name" text,
    "Description" text,
    "Livery" text,
    "Owner(s)" text,
    "Date" text
) ### Response: SELECT "Owner(s)" FROM table_55212 WHERE "Description" = 'operational'