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.

[Q]: zabno (polish: żabno) is a town in poland.
[A]: zabno


[Q]: the canton of bellerive-sur-allier is an administrative division of the allier department in central france.
[A]: canton of bellerive-sur-allier


[Q]: these impostors were known as pseudo-nero.
[A]:
pseudo-nero