CREATE TABLE table_203_512 (id DECIMAL, "release date" TEXT, "album" TEXT, "catalog number" TEXT, "chart position" DECIMAL, "notes" TEXT)

niji iro no sneaker was released on march 5 , 1991 ; which single was released the previous year ?
SELECT "album" FROM table_203_512 WHERE "release date" = (SELECT "release date" FROM table_203_512 WHERE "album" = 'niji-iro no sneaker') - 1
SELECT "album" FROM "table_203_512" WHERE "release date" = (SELECT "release date" FROM "table_203_512" WHERE "album" = 'niji-iro no sneaker') - 1