CREATE TABLE table_51197 ("Year" FLOAT, "Theme" TEXT, "Artist" TEXT, "Composition" TEXT, "Mintage" FLOAT, "Issue Price" TEXT)

Who was the artist for the year of the snake?
SELECT "Artist" FROM table_51197 WHERE "Theme" = 'year of the snake'
SELECT "Artist" FROM "table_51197" WHERE "Theme" = 'year of the snake'