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: "feeling good" (or "feelin' good") is a jazz ballad.

Answer: feeling good


Question: las anod is a city in northern somalia.

Answer: las anod


Question: the hydrogenophilaceae are a family of betaproteobacteria, with two genera.

Answer:
hydrogenophilaceae