CREATE TABLE table_40072 ("Ring name" CLOB, "Current rank" CLOB, "Debut" CLOB, "Stable" CLOB, "Birthplace" CLOB)

What is Ring Name, when Current Rank is E0 Maegashira 9 West?
SELECT "Ring name" FROM table_40072 WHERE "Current rank" = 'e0 maegashira 9 west'
SELECT "Ring name" FROM "table_40072" WHERE "Current rank" = 'e0 maegashira 9 west'