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.
Ingredient specific calorie information from our recipes: 1  Calories In Vodka & Tonic with Lime Slice. 101 calories, 0g fat, 2g carbs, 0g protein, 0g fiber.  Calories In Vodka Tonic. 85 calories, 0g fat, 5g carbs, 0g protein, 0g fiber.