Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
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Question: ans is a municipality in the belgian province of liège.

Answer: ans


Question: rakesh sharma (born 13 january 1949) is a retired squadron leader in the indian air force.

Answer: rakesh sharma


Question: d-flat minor is a theoretical key based on the musical note d♭.

Answer:
d-flat minor