Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.
Example: Who did the Han Chinese want to help the Khitan no I mean the Mongols fight?
Example solution: Who did the Han Chinese want to help the Mongols fight?
Example explanation: The input initially means Khitan and then changes to Mongols, hence this is correct.

Problem: When a country is the core and developing nations it controls is at the periphery, I'm trying to say what is it called when a state has political and economic authority over other nations?
Solution: One country's authority over a number of others would constitute the original country as what?