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: LITERARY SEQUELS 
Clue: "The Restaurant at the End of the Universe" was one of Douglas Adams' sequels to this novel
answer:
the hitchhiker\'s guide to the galaxy


question:
Category: SIBLING REVELRY 
Clue: Dingane became King of the Zulus in 1828 after taking part in the murder of this king, his own brother
answer:
shaka


question:
Category: 20th CENTURY WOMEN 
Clue: Before taking her seat in the Senate, Dianne Feinstein was Mayor of this California city
answer:

san francisco