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.
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Question: Category: LITERARY BEFORE & AFTER 
Clue: She wrote "Interview With The Creamy Grain Dessert"

Answer: "anne rice pudding"


Question: Category: DRAMA 
Clue: Sula & Helena are robotesses in this Karel Capek play

Answer: "r.u.r."


Question: Category: PHYSICS 
Clue: The special theory of this says that the speed of light in a vacuum is a universal constant

Answer:
relativity