That a Liebfraumilch by any other name would be as sweet proved too true as we tasted the next wine:1996 Sichel Blue Nun Qualitatswein ($6.99). (The name "Blue Nun" is a marketing device of Peter Sichel; a major exporter of German wine, who thought foreigners would find it easier to pronounce.) Straw colored with a pleasant muscat bouquet, this wine was fuller bodied than the first Liebfraumilch, but still somewhat thin. Its refreshing flavor was also more palatable. One taster thought it would be perfect for splashing on a fruit salad.