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: VINCENT 
Clue: With Curt Gentry, he wrote "Helter Skelter: The True Story of the Manson Murders"

Answer: vincent bugliosi


Question: Category: SHAKESPEARE 
Clue: "Twelfth Night" opens with, "If music be the food of love," do this

Answer: play on


Question: Category: PEOPLES 
Clue: They came from Jutland to invade Britain around the same time as the Angles & Saxons

Answer:
jutes