Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
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Question: What city, sorry, building was a gift from the Soviet Union?

Answer: What building was a gift from the Soviet Union?


Question: What is Warsaw's National Museum most known for?

Answer: Warsaw's National Museum is one of the most what?


Question: What did or rather how many rival princes were involved in living with Gegeen?

Answer:
How many rival princes were involved in living with Gegeen?