CREATE TABLE table_204_104 (id DECIMAL, "title" TEXT, "genre" TEXT, "sub\\u00addivisions" TEXT, "libretto" TEXT, "premiere date" TEXT, "place ,  theatre" TEXT, "notes" TEXT)

which opera has the most acts , la fortezza al cimento or astarto ?
SELECT "title" FROM table_204_104 WHERE "title" IN ('la fortezza al cimento', 'astarto') ORDER BY "sub\u00addivisions" DESC LIMIT 1
SELECT "title" FROM "table_204_104" WHERE "title" IN ('la fortezza al cimento', 'astarto') ORDER BY "sub\u00addivisions" DESC NULLS LAST LIMIT 1