In linking a subordinate clause and a main clause, a relative pronoun functions similarly to a subordinating conjunction. Unlike a conjunction, however, a relative pronoun does not simply mark the subordinate (relative) clause, but also plays the role of a noun within that clause.
The main ingredient in most vodkas is some kind of grain, such as wheat, corn or rye. Potatoes are another common base ingredient for vodka, according to About.com.
Ingredients. Smirnoff Vanilla is a flavored, grain-based vodka. Grain vodkas are the most popular and tend to be smooth and fruity.Grain based vodkas generally do not require as much distillation as vegetable based vodkas as grain produces less impurities during the fermentation process.ngredients. Smirnoff Vanilla is a flavored, grain-based vodka. Grain vodkas are the most popular and tend to be smooth and fruity.