Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Lopburi, Phichit and Ang Thong are provinces in which Asian country?

Answer: phichit

Question: Abyssinian, British Longhair and German Rex are all breeds of what?

Answer: british longhair

Question: The Church of the Savior on Spilled Blood, built on the site of the assassination of Tsar Alexander II, is in which Russian city?

Answer:
church of the savior on blood