Complex sentence: First released with the 1971 vintage, it continued to be produced alongside Cuvee Sir Winston Churchill until the 1988 vintage, when its production was terminated as Pol Roger felt no need to have two competing prestige cuvees.
Split into simpler sentences: First released with the 1971 vintage, it continued to be produced alongside Cuvee Sir Winston Churchill until the 1988 vintage. Its production was terminated as Pol Roger felt no need to have two competing prestige cuvees.