Complex sentence: The vodka martini has become a common and popular cocktail, but some purists maintain that, while it is a perfectly fine drink, it is not a true Martini, which is traditionally made with gin.
Split into simpler sentences: The vodka martini has become a common and popular cocktail, but some purists maintain that, while it is a perfectly fine drink. It is not a true Martini, which is traditionally made with gin.