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: EARLY ART 
Clue: This art form of setting stones or glass into mortar was the main decorative art of the Byzantine Empire
answer:
mosaic


question:
Category: MEN OF LETTERS 
Clue: Vidiadhar Surajprasad...
answer:
v.s. naipaul


question:
Category: JUNEAU 
Clue: Juneau has several sister cities including Whitehorse in the Yukon & this port in Southeastern Siberia
answer:

vladivostok