CREATE TABLE table_11140 ("Year" FLOAT, "Theme" CLOB, "Artist" CLOB, "Composition" CLOB, "Mintage" FLOAT, "Issue Price" CLOB)

What is the theme of the coin from before 2006?
SELECT "Theme" FROM table_11140 WHERE "Year" < '2006'
SELECT "Theme" FROM "table_11140" WHERE "Year" < '2006'