instruction:
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 simplicity, answers should be in all lower cased letters.
question:
Category: 10-LETTER WORDS 
Clue: It means to set free, as from slavery
answer:
emancipate


question:
Category: DRAMA 
Clue: Sula & Helena are robotesses in this Karel Capek play
answer:
"r.u.r."


question:
Category: HAVE YOU HEARD THE WORD? 
Clue: The name of this cold, treeless region where reindeer thrive comes from a Russian word for "flat-topped hill"
answer:

tundra