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: mrs. hugh hammersley is an oil painting by john singer sargent.

Answer: mrs. hugh hammersley


Question: the northumbrian smallpipes are a type of bagpipes from north east england.

Answer: northumbrian smallpipes


Question: pakistan super league (psl) is a professional twenty20 cricket tournament in pakistan.

Answer:
pakistan super league