CREATE TABLE table_939 ("Number" FLOAT, "Astronaut" CLOB, "Agency" CLOB, "Total EVAs" FLOAT, "Total Time Hours:Minutes" CLOB)

What agency does Anderson Clayton Anderson work for?
SELECT "Agency" FROM table_939 WHERE "Astronaut" = 'Anderson Clayton Anderson'
SELECT "Agency" FROM "table_939" WHERE "Astronaut" = 'Anderson Clayton Anderson'