CREATE TABLE table_52236 ("Year" FLOAT, "Theme" CLOB, "Artist" CLOB, "Mintage" CLOB, "Issue Price" CLOB)

Which artist created the silver dollar for the 400th anniversary of Quebec?
SELECT "Artist" FROM table_52236 WHERE "Theme" = '400th anniversary of quebec'
SELECT "Artist" FROM "table_52236" WHERE "Theme" = '400th anniversary of quebec'