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: 1  2 tablespoons of one or a combination of the following: witch hazel or vodka (find witch hazel here) 2  2 tablespoons of one or a combination of the following: grapeseed oil, jojoba oil, almond oil, olive oil, or neem oil (which contains natural insecticidal compounds) â (where to buy these oils)