What agency does Anderson Clayton Anderson work for?
CREATE TABLE table_939 (
    "Number" real,
    "Astronaut" text,
    "Agency" text,
    "Total EVAs" real,
    "Total Time Hours:Minutes" text
)
SELECT "Agency" FROM table_939 WHERE "Astronaut" = 'Anderson Clayton Anderson'
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 agency does Anderson Clayton Anderson work for? ### Input: CREATE TABLE table_939 (
    "Number" real,
    "Astronaut" text,
    "Agency" text,
    "Total EVAs" real,
    "Total Time Hours:Minutes" text
) ### Response: SELECT "Agency" FROM table_939 WHERE "Astronaut" = 'Anderson Clayton Anderson'