You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For consistency, answers should be in all lower cased letters.

Category: THE DIGESTIVE SYSTEM 
Clue: Gravity isn't required to move food down to your stomach; this process moves it down the esophagus
peristalsis

Category: ROCK BANDS 
Clue: ("Fight for Your Right")
the beastie boys

Category: THE DECLARATION OF INDEPENDENCE 
Clue: It says that if this denies people their rights, the people have the right "to alter or abolish it"

the government