CREATE TABLE table_9577 ("Name" CLOB, "Rank" CLOB, "Tenure" CLOB, "Date of death" CLOB, "Cause of death" CLOB)

What is the Tenure of the Officer with a Date of death of 2001-08-31?
SELECT "Tenure" FROM table_9577 WHERE "Date of death" = '2001-08-31'
SELECT "Tenure" FROM "table_9577" WHERE "Date of death" = '2001-08-31'